define presentation position

• Trying to Conceive
• Signs & Symptoms
• Pregnancy Tests
• Fertility Testing
• Fertility Treatment
• Weeks & Trimesters
• Staying Healthy
• Preparing for Baby
• Complications & Concerns
• Pregnancy Loss
• Breastfeeding
• School-Aged Kids
• Raising Kids
• Personal Stories
• Everyday Wellness
• Safety & First Aid
• Immunizations
• Food & Nutrition
• Active Play
• Pregnancy Products
• Nursery & Sleep Products
• Nursing & Feeding Products
• Clothing & Accessories
• Toys & Gifts
• Ovulation Calculator
• Pregnancy Due Date Calculator
• How to Talk About Postpartum Depression
• Editorial Process
• Meet Our Review Board

Fetal Positions for Labor and Birth

Knowing your baby's position can you help ease pain and speed up labor

In the last weeks of pregnancy , determining your baby's position can help you manage pain and discomfort. Knowing your baby's position during early labor can help you adjust your own position during labor and possibly even speed up the process.

Right or Left Occiput Anterior

Illustration by JR Bee, Verywell 

Looking at where the baby's head is in the birth canal helps determine the fetal position.The front of a baby's head is referred to as the anterior portion and the back is the posterior portion. There are two different positions called occiput anterior (OA) positions that may occur.

The left occiput anterior (LOA) position is the most common in labor. In this position, the baby's head is slightly off-center in the pelvis with the back of the head toward the mother's left thigh.

The right occiput anterior (ROA) presentation is also common in labor. In this position, the back of the baby is slightly off-center in the pelvis with the back of the head toward the mother's right thigh.

In general, OA positions do not lead to problems or additional pain during labor or birth.  

Right or Left Occiput Transverse

Illustration by JR Bee, Verywell  

When facing out toward the mother's right thigh, the baby is said to be left occiput transverse (LOT). This position is halfway between a posterior and anterior position. If the baby was previously in a posterior position (in either direction), the LOT position indicates positive movement toward an anterior position.

When the baby is facing outward toward the mother's left thigh, the baby is said to be right occiput transverse (ROT). Like the previous presentation, ROT is halfway between a posterior and anterior position. If the baby was previously in a posterior position, ROT is a sign the baby is making a positive move toward an anterior position.

When a baby is in the left occiput transverse position (LOT) or right occiput transverse (ROT) position during labor, it may lead to more pain and a slower progression.

Tips to Reduce Discomfort

There are several labor positions a mother can try to alleviate pain and encourage the baby to continue rotating toward an anterior position, including:

• Pelvic tilts
• Standing and swaying

A doula , labor nurse, midwife , or doctor may have other suggestions for positions.

Right or Left Occiput Posterior

When facing forward, the baby is in the occiput posterior position. If the baby is facing forward and slightly to the left (looking toward the mother's right thigh) it is in the left occiput posterior (LOP) position. This presentation can lead to more back pain (sometimes referred to as " back labor ") and slow progression of labor.

In the right occiput posterior position (ROP), the baby is facing forward and slightly to the right (looking toward the mother's left thigh). This presentation may slow labor and cause more pain.

To help prevent or decrease pain during labor and encourage the baby to move into a better position for delivery, mothers can try a variety of positions, including:

• Hands and knees
• Pelvic rocking

Mothers may try other comfort measures, including:

• Bathtub or shower (water)
• Counter pressure
• Movement (swaying, dancing, sitting on a birth ball )
• Rice socks (heat packs)

How a Doctor Determines Baby's Position

Leopold's maneuvers are a series of hands-on examinations your doctor or midwife will use to help determine your baby's position. During the third trimester , the assessment will be done at most of your prenatal visits.   Knowing the baby's position before labor begins can help you prepare for labor and delivery.

Once labor begins, a nurse, doctor, or midwife will be able to get a more accurate sense of your baby's position by performing a vaginal exam. When your cervix is dilated enough, the practitioner will insert their fingers into the vagina and feel for the suture lines of the baby's skull as it moves down in the birth canal.   It's important to ensure the baby is head down and moving in the right direction.

Labor and delivery may be more complicated if the baby is not in a head-down position, such as in the case of a breech presentation.

How You Can Determine Baby's Position

While exams by health practitioners are an important part of your care, from the prenatal period through labor and delivery, often the best person to assess a baby's position in the pelvis is you. Mothers should pay close attention to how the baby moves and where different movements are felt.

A technique called belly mapping can help mothers ask questions of themselves to assess their baby's movement and get a sense of the position they are in as labor approaches.

For example, the position of your baby's legs can be determined by asking questions about the location and strength of the kicking you feel. The spots where you feel the strongest kicks are most likely where your baby's feet are.

Other landmarks you can feel for include a large, flat plane, which is most likely your baby's back. Sometimes you can feel the baby arching his or her back.

At the top or bottom of the flat plane, you may feel either a hard, round shape (most likely your baby's head) or a soft curve (most likely to be your baby's bottom).

Guittier M, Othenin-Girard V, de Gasquet B, Irion O, Boulvain M. Maternal positioning to correct occiput posterior fetal position during the first stage of labour: a randomised controlled trial .  BJOG: An International Journal of Obstetrics & Gynaecology . 2016;123(13):2199-2207. doi:10.1111/1471-0528.13855

Gizzo S, Di Gangi S, Noventa M, Bacile V, Zambon A, Nardelli G. Women’s Choice of Positions during Labour: Return to the Past or a Modern Way to Give Birth? A Cohort Study in Italy .  Biomed Res Int . 2014;2014:1-7. doi:10.1155/2014/638093

Ahmad A, Webb S, Early B, Sitch A, Khan K, MacArthur C. Association between fetal position at onset of labor and mode of delivery: a prospective cohort study .  Ultrasound in Obstetrics & Gynecology . 2014;43(2):176-182. doi:10.1002/uog.13189

Nishikawa M, Sakakibara H. Effect of nursing intervention program using abdominal palpation of Leopold’s maneuvers on maternal-fetal attachment .  Reprod Health . 2013;10(1). doi:10.1186/1742-4755-10-12

Choi S, Park Y, Lee D, Ko H, Park I, Shin J. Sonographic assessment of fetal occiput position during labor for the prediction of labor dystocia and perinatal outcomes .  The Journal of Maternal-Fetal & Neonatal Medicine . 2016;29(24):3988-3992. doi:10.3109/14767058.2016.1152250

Bamberg C, Deprest J, Sindhwani N et al. Evaluating fetal head dimension changes during labor using open magnetic resonance imaging .  J Perinat Med . 2017;45(3). doi:10.1515/jpm-2016-0005

Gabbe S, Niebyl J, Simpson J et al.  Obstetrics . Philadelphia, Pa.: Elsevier; 2012.

By Robin Elise Weiss, PhD, MPH Robin Elise Weiss, PhD, MPH is a professor, author, childbirth and postpartum educator, certified doula, and lactation counselor.

• Getting Pregnant
• Registry Builder
• Baby Products
• Birth Clubs
• See all in Community
• Ovulation Calculator
• How To Get Pregnant
• How To Get Pregnant Fast
• Ovulation Discharge
• Implantation Bleeding
• Ovulation Symptoms
• Pregnancy Symptoms
• Am I Pregnant?
• Pregnancy Tests
• See all in Getting Pregnant
• Due Date Calculator
• Pregnancy Week by Week
• Pregnant Sex
• Weight Gain Tracker
• Signs of Labor
• Morning Sickness
• COVID Vaccine and Pregnancy
• Fetal Weight Chart
• Fetal Development
• Pregnancy Discharge
• Find Out Baby Gender
• Chinese Gender Predictor
• See all in Pregnancy
• Baby Name Generator
• Top Baby Names 2023
• Top Baby Names 2024
• How to Pick a Baby Name
• Most Popular Baby Names
• Baby Names by Letter
• Gender Neutral Names
• Unique Boy Names
• Unique Girl Names
• Top baby names by year
• See all in Baby Names
• Baby Development
• Baby Feeding Guide
• Newborn Sleep
• When Babies Roll Over
• First-Year Baby Costs Calculator
• Postpartum Health
• Baby Poop Chart
• See all in Baby
• Average Weight & Height
• Autism Signs
• Child Growth Chart
• Night Terrors
• Moving from Crib to Bed
• Toddler Feeding Guide
• Potty Training
• Bathing and Grooming
• See all in Toddler
• Height Predictor
• Potty Training: Boys
• Potty training: Girls
• How Much Sleep? (Ages 3+)
• Ready for Preschool?
• Thumb-Sucking
• Gross Motor Skills
• Napping (Ages 2 to 3)
• See all in Child
• Photos: Rashes & Skin Conditions
• Symptom Checker
• Vaccine Scheduler
• Reducing a Fever
• Acetaminophen Dosage Chart
• Constipation in Babies
• Ear Infection Symptoms
• Head Lice 101
• See all in Health
• Second Pregnancy
• Daycare Costs
• Family Finance
• Stay-At-Home Parents
• Breastfeeding Positions
• See all in Family
• Baby Sleep Training
• Preparing For Baby
• My Custom Checklist
• My Registries
• Take the Quiz
• Best Baby Products
• Best Breast Pump
• Best Convertible Car Seat
• Best Infant Car Seat
• Best Baby Bottle
• Best Baby Monitor
• Best Stroller
• Best Diapers
• Best Baby Carrier
• Best Diaper Bag
• Best Highchair
• See all in Baby Products
• Why Pregnant Belly Feels Tight
• Early Signs of Twins
• Teas During Pregnancy
• Baby Head Circumference Chart
• How Many Months Pregnant Am I
• What is a Rainbow Baby
• Braxton Hicks Contractions
• HCG Levels By Week
• When to Take a Pregnancy Test
• Am I Pregnant
• Why is Poop Green
• Can Pregnant Women Eat Shrimp
• Insemination
• UTI During Pregnancy
• Vitamin D Drops
• Best Baby Forumla
• Postpartum Depression
• Low Progesterone During Pregnancy
• Baby Shower
• Baby Shower Games

Breech, posterior, transverse lie: What position is my baby in?

Fetal presentation, or how your baby is situated in your womb at birth, is determined by the body part that's positioned to come out first, and it can affect the way you deliver. At the time of delivery, 97 percent of babies are head-down (cephalic presentation). But there are several other possibilities, including feet or bottom first (breech) as well as sideways (transverse lie) and diagonal (oblique lie).

Fetal presentation and position

During the last trimester of your pregnancy, your provider will check your baby's presentation by feeling your belly to locate the head, bottom, and back. If it's unclear, your provider may do an ultrasound or an internal exam to feel what part of the baby is in your pelvis.

Fetal position refers to whether the baby is facing your spine (anterior position) or facing your belly (posterior position). Fetal position can change often: Your baby may be face up at the beginning of labor and face down at delivery.

Here are the many possibilities for fetal presentation and position in the womb.

Medical illustrations by Jonathan Dimes

Head down, facing down (anterior position)

A baby who is head down and facing your spine is in the anterior position. This is the most common fetal presentation and the easiest position for a vaginal delivery.

This position is also known as "occiput anterior" because the back of your baby's skull (occipital bone) is in the front (anterior) of your pelvis.

Head down, facing up (posterior position)

In the posterior position , your baby is head down and facing your belly. You may also hear it called "sunny-side up" because babies who stay in this position are born facing up. But many babies who are facing up during labor rotate to the easier face down (anterior) position before birth.

Posterior position is formally known as "occiput posterior" because the back of your baby's skull (occipital bone) is in the back (posterior) of your pelvis.

Frank breech

In the frank breech presentation, both the baby's legs are extended so that the feet are up near the face. This is the most common type of breech presentation. Breech babies are difficult to deliver vaginally, so most arrive by c-section .

Some providers will attempt to turn your baby manually to the head down position by applying pressure to your belly. This is called an external cephalic version , and it has a 58 percent success rate for turning breech babies. For more information, see our article on breech birth .

Complete breech

A complete breech is when your baby is bottom down with hips and knees bent in a tuck or cross-legged position. If your baby is in a complete breech, you may feel kicking in your lower abdomen.

Incomplete breech

In an incomplete breech, one of the baby's knees is bent so that the foot is tucked next to the bottom with the other leg extended, positioning that foot closer to the face.

Single footling breech

In the single footling breech presentation, one of the baby's feet is pointed toward your cervix.

Double footling breech

In the double footling breech presentation, both of the baby's feet are pointed toward your cervix.

Transverse lie

In a transverse lie, the baby is lying horizontally in your uterus and may be facing up toward your head or down toward your feet. Babies settle this way less than 1 percent of the time, but it happens more commonly if you're carrying multiples or deliver before your due date.

If your baby stays in a transverse lie until the end of your pregnancy, it can be dangerous for delivery. Your provider will likely schedule a c-section or attempt an external cephalic version , which is highly successful for turning babies in this position.

Oblique lie

In rare cases, your baby may lie diagonally in your uterus, with his rump facing the side of your body at an angle.

Like the transverse lie, this position is more common earlier in pregnancy, and it's likely your provider will intervene if your baby is still in the oblique lie at the end of your third trimester.

Was this article helpful?

What to know if your baby is breech

What's a sunny-side up baby?

How your twins’ fetal positions affect labor and delivery

Too much amniotic fluid (polyhydramnios)

BabyCenter's editorial team is committed to providing the most helpful and trustworthy pregnancy and parenting information in the world. When creating and updating content, we rely on credible sources: respected health organizations, professional groups of doctors and other experts, and published studies in peer-reviewed journals. We believe you should always know the source of the information you're seeing. Learn more about our editorial and medical review policies .

Ahmad A et al. 2014. Association of fetal position at onset of labor and mode of delivery: A prospective cohort study. Ultrasound in obstetrics & gynecology 43(2):176-182. https://www.ncbi.nlm.nih.gov/pubmed/23929533 Opens a new window [Accessed September 2021]

Gray CJ and Shanahan MM. 2019. Breech presentation. StatPearls.  https://www.ncbi.nlm.nih.gov/books/NBK448063/ Opens a new window [Accessed September 2021]

Hankins GD. 1990. Transverse lie. American Journal of Perinatology 7(1):66-70.  https://www.ncbi.nlm.nih.gov/pubmed/2131781 Opens a new window [Accessed September 2021]

Medline Plus. 2020. Your baby in the birth canal. U.S. National Library of Medicine. https://medlineplus.gov/ency/article/002060.htm Opens a new window [Accessed September 2021]

Where to go next

Appointments at Mayo Clinic

• Pregnancy week by week
• Fetal presentation before birth

The way a baby is positioned in the uterus just before birth can have a big effect on labor and delivery. This positioning is called fetal presentation.

Babies twist, stretch and tumble quite a bit during pregnancy. Before labor starts, however, they usually come to rest in a way that allows them to be delivered through the birth canal headfirst. This position is called cephalic presentation. But there are other ways a baby may settle just before labor begins.

Following are some of the possible ways a baby may be positioned at the end of pregnancy.

Head down, face down

When a baby is head down, face down, the medical term for it is the cephalic occiput anterior position. This the most common position for a baby to be born in. With the face down and turned slightly to the side, the smallest part of the baby's head leads the way through the birth canal. It is the easiest way for a baby to be born.

Head down, face up

When a baby is head down, face up, the medical term for it is the cephalic occiput posterior position. In this position, it might be harder for a baby's head to go under the pubic bone during delivery. That can make labor take longer.

Most babies who begin labor in this position eventually turn to be face down. If that doesn't happen, and the second stage of labor is taking a long time, a member of the health care team may reach through the vagina to help the baby turn. This is called manual rotation.

In some cases, a baby can be born in the head-down, face-up position. Use of forceps or a vacuum device to help with delivery is more common when a baby is in this position than in the head-down, face-down position. In some cases, a C-section delivery may be needed.

Frank breech

When a baby's feet or buttocks are in place to come out first during birth, it's called a breech presentation. This happens in about 3% to 4% of babies close to the time of birth. The baby shown below is in a frank breech presentation. That's when the knees aren't bent, and the feet are close to the baby's head. This is the most common type of breech presentation.

If you are more than 36 weeks into your pregnancy and your baby is in a frank breech presentation, your health care professional may try to move the baby into a head-down position. This is done using a procedure called external cephalic version. It involves one or two members of the health care team putting pressure on your belly with their hands to get the baby to roll into a head-down position.

If the procedure isn't successful, or if the baby moves back into a breech position, talk with a member of your health care team about the choices you have for delivery. Most babies in a frank breech position are born by planned C-section.

Complete and incomplete breech

A complete breech presentation, as shown below, is when the baby has both knees bent and both legs pulled close to the body. In an incomplete breech, one or both of the legs are not pulled close to the body, and one or both of the feet or knees are below the baby's buttocks. If a baby is in either of these positions, you might feel kicking in the lower part of your belly.

If you are more than 36 weeks into your pregnancy and your baby is in a complete or incomplete breech presentation, your health care professional may try to move the baby into a head-down position. This is done using a procedure called external cephalic version. It involves one or two members of the health care team putting pressure on your belly with their hands to get the baby to roll into a head-down position.

If the procedure isn't successful, or if the baby moves back into a breech position, talk with a member of your health care team about the choices you have for delivery. Many babies in a complete or incomplete breech position are born by planned C-section.

When a baby is sideways — lying horizontal across the uterus, rather than vertical — it's called a transverse lie. In this position, the baby's back might be:

• Down, with the back facing the birth canal.
• Sideways, with one shoulder pointing toward the birth canal.
• Up, with the hands and feet facing the birth canal.

Although many babies are sideways early in pregnancy, few stay this way when labor begins.

If your baby is in a transverse lie during week 37 of your pregnancy, your health care professional may try to move the baby into a head-down position. This is done using a procedure called external cephalic version. External cephalic version involves one or two members of your health care team putting pressure on your belly with their hands to get the baby to roll into a head-down position.

If the procedure isn't successful, or if the baby moves back into a transverse lie, talk with a member of your health care team about the choices you have for delivery. Many babies who are in a transverse lie are born by C-section.

If you're pregnant with twins and only the twin that's lower in the uterus is head down, as shown below, your health care provider may first deliver that baby vaginally.

Then, in some cases, your health care team may suggest delivering the second twin in the breech position. Or they may try to move the second twin into a head-down position. This is done using a procedure called external cephalic version. External cephalic version involves one or two members of the health care team putting pressure on your belly with their hands to get the baby to roll into a head-down position.

Your health care team may suggest delivery by C-section for the second twin if:

• An attempt to deliver the baby in the breech position is not successful.
• You do not want to try to have the baby delivered vaginally in the breech position.
• An attempt to move the baby into a head-down position is not successful.
• You do not want to try to move the baby to a head-down position.

In some cases, your health care team may advise that you have both twins delivered by C-section. That might happen if the lower twin is not head down, the second twin has low or high birth weight as compared to the first twin, or if preterm labor starts.

• Landon MB, et al., eds. Normal labor and delivery. In: Gabbe's Obstetrics: Normal and Problem Pregnancies. 8th ed. Elsevier; 2021. https://www.clinicalkey.com. Accessed May 19, 2023.
• Holcroft Argani C, et al. Occiput posterior position. https://www.updtodate.com/contents/search. Accessed May 19, 2023.
• Frequently asked questions: If your baby is breech. American College of Obstetricians and Gynecologists https://www.acog.org/womens-health/faqs/if-your-baby-is-breech. Accessed May 22, 2023.
• Hofmeyr GJ. Overview of breech presentation. https://www.updtodate.com/contents/search. Accessed May 22, 2023.
• Strauss RA, et al. Transverse fetal lie. https://www.updtodate.com/contents/search. Accessed May 22, 2023.
• Chasen ST, et al. Twin pregnancy: Labor and delivery. https://www.updtodate.com/contents/search. Accessed May 22, 2023.
• Cohen R, et al. Is vaginal delivery of a breech second twin safe? A comparison between delivery of vertex and non-vertex second twins. The Journal of Maternal-Fetal & Neonatal Medicine. 2021; doi:10.1080/14767058.2021.2005569.
• Marnach ML (expert opinion). Mayo Clinic. May 31, 2023.

Products and Services

• A Book: Obstetricks
• A Book: Mayo Clinic Guide to a Healthy Pregnancy
• 3rd trimester pregnancy
• Fetal development: The 3rd trimester
• Overdue pregnancy
• Pregnancy due date calculator
• Prenatal care: 3rd trimester

Mayo Clinic does not endorse companies or products. Advertising revenue supports our not-for-profit mission.

• Opportunities

Mayo Clinic Press

Check out these best-sellers and special offers on books and newsletters from Mayo Clinic Press .

• Mayo Clinic on Incontinence - Mayo Clinic Press Mayo Clinic on Incontinence
• The Essential Diabetes Book - Mayo Clinic Press The Essential Diabetes Book
• Mayo Clinic on Hearing and Balance - Mayo Clinic Press Mayo Clinic on Hearing and Balance
• FREE Mayo Clinic Diet Assessment - Mayo Clinic Press FREE Mayo Clinic Diet Assessment
• Mayo Clinic Health Letter - FREE book - Mayo Clinic Press Mayo Clinic Health Letter - FREE book
• Healthy Lifestyle

Make twice the impact

Your gift can go twice as far to advance cancer research and care!

An official website of the United States government

The .gov means it's official. Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you're on a federal government site.

The site is secure. The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

• Publications
• Account settings
• Browse Titles

NCBI Bookshelf. A service of the National Library of Medicine, National Institutes of Health.

StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2024 Jan-.

StatPearls [Internet].

Delivery, face and brow presentation.

Julija Makajeva ; Mohsina Ashraf .

Affiliations

Last Update: January 9, 2023 .

• Continuing Education Activity

Face and brow presentation is a malpresentation during labor when the presenting part is either the face or, in the case of brow presentation, it is the area between the orbital ridge and the anterior fontanelle. This activity reviews the evaluation and management of these two presentations and explains the role of the interprofessional team in managing delivery safely for both the mother and the baby.

• Describe the mechanism of labor in the face and brow presentation.
• Summarize potential maternal and fetal complications during the face and brow presentations.
• Review different management approaches for the face and brow presentation.
• Outline some interprofessional strategies that will improve patient outcomes in delivery cases with face and brow presentation issues.
• Introduction

The term presentation describes the leading part of the fetus or the anatomical structure closest to the maternal pelvic inlet during labor. The presentation can roughly be divided into the following classifications: cephalic, breech, shoulder, and compound. Cephalic presentation is the most common and can be further subclassified as vertex, sinciput, brow, face, and chin. The most common presentation in term labor is the vertex, where the fetal neck is flexed to the chin, minimizing the head circumference.

Face presentation – an abnormal form of cephalic presentation where the presenting part is mentum. This typically occurs because of hyperextension of the neck and the occiput touching the fetal back. Incidence of face presentation is rare, accounting for approximately 1 in 600 of all presentations. [1] [2] [3]

In brow presentation, the neck is not extended as much as in face presentation, and the leading part is the area between the anterior fontanelle and the orbital ridges. Brow presentation is considered the rarest of all malpresentation with a prevalence of 1 in 500 to 1 in 4000 deliveries. [3]

Both face and brow presentations occur due to extension of the fetal neck instead of flexion; therefore, conditions that would lead to hyperextension or prevent flexion of the fetal neck can all contribute to face or brow presentation. These risk factors may be related to either the mother or the fetus. Maternal risk factors are preterm delivery, contracted maternal pelvis, platypelloid pelvis, multiparity, previous cesarean section, black race. Fetal risk factors include anencephaly, multiple loops of cord around the neck, masses of the neck, macrosomia, polyhydramnios. [2] [4] [5]

These malpresentations are usually diagnosed during the second stage of labor when performing a digital examination. It is possible to palpate orbital ridges, nose, malar eminences, mentum, mouth, gums, and chin in face presentation. Based on the position of the chin, face presentation can be further divided into mentum anterior, posterior, or transverse. In brow presentation, anterior fontanelle and face can be palpated except for the mouth and the chin. Brow presentation can then be further described based on the position of the anterior fontanelle as frontal anterior, posterior, or transverse.

Diagnosing the exact presentation can be challenging, and face presentation may be misdiagnosed as frank breech. To avoid any confusion, a bedside ultrasound scan can be performed. [6]  The ultrasound imaging can show a reduced angle between the occiput and the spine or, the chin is separated from the chest. However, ultrasound does not provide much predicting value in the outcome of the labor. [7]

• Anatomy and Physiology

Before discussing the mechanism of labor in the face or brow presentation, it is crucial to highlight some anatomical landmarks and their measurements. 

Planes and Diameters of the Pelvis

The three most important planes in the female pelvis are the pelvic inlet, mid pelvis, and pelvic outlet. 

Four diameters can describe the pelvic inlet: anteroposterior, transverse, and two obliques. Furthermore, based on the different landmarks on the pelvic inlet, there are three different anteroposterior diameters, named conjugates: true conjugate, obstetrical conjugate, and diagonal conjugate. Only the latter can be measured directly during the obstetric examination. The shortest of these three diameters is obstetrical conjugate, which measures approximately 10.5 cm and is a distance between the sacral promontory and 1 cm below the upper border of the symphysis pubis. This measurement is clinically significant as the fetal head must pass through this diameter during the engagement phase. The transverse diameter measures about 13.5cm and is the widest distance between the innominate line on both sides. 

The shortest distance in the mid pelvis is the interspinous diameter and usually is only about 10 cm. 

Fetal Skull Diameters

There are six distinguished longitudinal fetal skull diameters:

• Suboccipito-bregmatic: from the center of anterior fontanelle (bregma) to the occipital protuberance, measuring 9.5 cm. This is the presenting diameter in vertex presentation. 
• Suboccipito-frontal: from the anterior part of bregma to the occipital protuberance, measuring 10 cm 
• Occipito-frontal: from the root of the nose to the most prominent part of the occiput, measuring 11.5cm
• Submento-bregmatic: from the center of the bregma to the angle of the mandible, measuring 9.5 cm. This is the presenting diameter in face presentation where the neck is hyperextended. 
• Submento-vertical: from the midpoint between fontanelles and the angle of the mandible, measuring 11.5cm 
• Occipito-mental: from the midpoint between fontanelles and the tip of the chin, measuring 13.5 cm. It is the presenting diameter in brow presentation. 

Cardinal Movements of Normal Labor

• Neck flexion
• Internal rotation
• Extension (delivers head)
• External rotation (Restitution)
• Expulsion (delivery of anterior and posterior shoulders)

Some of the key movements are not possible in the face or brow presentations.  

Based on the information provided above, it is obvious that labor will be arrested in brow presentation unless it spontaneously changes to face or vertex, as the occipito-mental diameter of the fetal head is significantly wider than the smallest diameter of the female pelvis. Face presentation can, however, be delivered vaginally, and further mechanisms of face delivery will be explained in later sections.

• Indications

As mentioned previously, spontaneous vaginal delivery can be successful in face presentation. However, the main indication for vaginal delivery in such circumstances would be a maternal choice. It is crucial to have a thorough conversation with a mother, explaining the risks and benefits of vaginal delivery with face presentation and a cesarean section. Informed consent and creating a rapport with the mother is an essential aspect of safe and successful labor.

• Contraindications

Vaginal delivery of face presentation is contraindicated if the mentum is lying posteriorly or is in a transverse position. In such a scenario, the fetal brow is pressing against the maternal symphysis pubis, and the short fetal neck, which is already maximally extended, cannot span the surface of the maternal sacrum. In this position, the diameter of the head is larger than the maternal pelvis, and it cannot descend through the birth canal. Therefore the cesarean section is recommended as the safest mode of delivery for mentum posterior face presentations. 

Attempts to manually convert face presentation to vertex, manual or forceps rotation of the persistent posterior chin to anterior are contraindicated as they can be dangerous.

Persistent brow presentation itself is a contraindication for vaginal delivery unless the fetus is significantly small or the maternal pelvis is large.

Continuous electronic fetal heart rate monitoring is recommended for face and brow presentations, as heart rate abnormalities are common in these scenarios. One study found that only 14% of the cases with face presentation had no abnormal traces on the cardiotocograph. [8] It is advised to use external transducer devices to prevent damage to the eyes. When internal monitoring is inevitable, it is suggested to place monitoring devices on bony parts carefully. 

People who are usually involved in the delivery of face/ brow presentation are:

• Experienced midwife, preferably looking after laboring woman 1:1
• Senior obstetrician 
• Neonatal team - in case of need for resuscitation 
• Anesthetic team - to provide necessary pain control (e.g., epidural)
• Theatre team  - in case of failure to progress and an emergency cesarean section will be required.
• Preparation

No specific preparation is required for face or brow presentation. However, it is essential to discuss the labor options with the mother and birthing partner and inform members of the neonatal, anesthetic, and theatre co-ordinating teams.

• Technique or Treatment

Mechanism of Labor in Face Presentation

During contractions, the pressure exerted by the fundus of the uterus on the fetus and pressure of amniotic fluid initiate descent. During this descent, the fetal neck extends instead of flexing. The internal rotation determines the outcome of delivery, if the fetal chin rotates posteriorly, vaginal delivery would not be possible, and cesarean section is permitted. The approach towards mentum-posterior delivery should be individualized, as the cases are rare. Expectant management is acceptable in multiparous women with small fetuses, as a spontaneous mentum-anterior rotation can occur. However, there should be a low threshold for cesarean section in primigravida women or women with large fetuses.

When the fetal chin is rotated towards maternal symphysis pubis as described as mentum-anterior; in these cases further descend through the vaginal canal continues with approximately 73% cases deliver spontaneously. [9] Fetal mentum presses on the maternal symphysis pubis, and the head is delivered by flexion. The occiput is pointing towards the maternal back, and external rotation happens. Shoulders are delivered in the same manner as in vertex delivery.

Mechanism of Labor in Brow Presentation

As this presentation is considered unstable, it is usually converted into a face or an occiput presentation. Due to the cephalic diameter being wider than the maternal pelvis, the fetal head cannot engage; thus, brow delivery cannot take place. Unless the fetus is small or the pelvis is very wide, the prognosis for vaginal delivery is poor. With persistent brow presentation, a cesarean section is required for safe delivery.

• Complications

As the cesarean section is becoming a more accessible mode of delivery in malpresentations, the incidence of maternal and fetal morbidity and mortality during face presentation has dropped significantly. [10]

However, there are still some complications associated with the nature of labor in face presentation. Due to the fetal head position, it is more challenging for the head to engage in the birth canal and descend, resulting in prolonged labor.

Prolonged labor itself can provoke foetal distress and arrhythmias. If the labor arrests or signs of fetal distress appear on CTG, the recommended next step in management is an emergency cesarean section, which in itself carries a myriad of operative and post-operative complications.

Finally, due to the nature of the fetal position and prolonged duration of labor in face presentation, neonates develop significant edema of the skull and face. Swelling of the fetal airway may also be present, resulting in respiratory distress after birth and possible intubation.

• Clinical Significance

During vertex presentation, the fetal head flexes, bringing the chin to the chest, forming the smallest possible fetal head diameter, measuring approximately 9.5cm. With face and brow presentation, the neck hyperextends, resulting in greater cephalic diameters. As a result, the fetal head will engage later, and labor will progress more slowly. Failure to progress in labor is also more common in both presentations compared to vertex presentation.

Furthermore, when the fetal chin is in a posterior position, this prevents further flexion of the fetal neck, as browns are pressing on the symphysis pubis. As a result, descend through the birth canal is impossible. Such presentation is considered undeliverable vaginally and requires an emergency cesarean section.

Manual attempts to change face presentation to vertex, manual or forceps rotation to mentum anterior are considered dangerous and are discouraged.

• Enhancing Healthcare Team Outcomes

A multidisciplinary team of healthcare experts supports the woman and her child during labor and the perinatal period. For a face or brow presentation to be appropriately diagnosed, an experienced midwife and obstetrician must be involved in the vaginal examination and labor monitoring. As fetal anomalies, such as anencephaly or goiter, can contribute to face presentation, sonographers experienced in antenatal scanning should also be involved in the care. It is advised to inform the anesthetic and neonatal teams in advance of the possible need for emergency cesarean section and resuscitation of the neonate. [11] [12]

• Review Questions
• Access free multiple choice questions on this topic.
• Comment on this article.

Disclosure: Julija Makajeva declares no relevant financial relationships with ineligible companies.

Disclosure: Mohsina Ashraf declares no relevant financial relationships with ineligible companies.

This book is distributed under the terms of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) ( http://creativecommons.org/licenses/by-nc-nd/4.0/ ), which permits others to distribute the work, provided that the article is not altered or used commercially. You are not required to obtain permission to distribute this article, provided that you credit the author and journal.

• Cite this Page Makajeva J, Ashraf M. Delivery, Face and Brow Presentation. [Updated 2023 Jan 9]. In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2024 Jan-.

In this Page

Bulk download.

• Bulk download StatPearls data from FTP

Related information

• PubMed Links to PubMed

Similar articles in PubMed

• Sonographic diagnosis of fetal head deflexion and the risk of cesarean delivery. [Am J Obstet Gynecol MFM. 2020] Sonographic diagnosis of fetal head deflexion and the risk of cesarean delivery. Bellussi F, Livi A, Cataneo I, Salsi G, Lenzi J, Pilu G. Am J Obstet Gynecol MFM. 2020 Nov; 2(4):100217. Epub 2020 Aug 18.
• Review Sonographic evaluation of the fetal head position and attitude during labor. [Am J Obstet Gynecol. 2022] Review Sonographic evaluation of the fetal head position and attitude during labor. Ghi T, Dall'Asta A. Am J Obstet Gynecol. 2022 Jul 6; . Epub 2022 Jul 6.
• Stages of Labor. [StatPearls. 2024] Stages of Labor. Hutchison J, Mahdy H, Hutchison J. StatPearls. 2024 Jan
• Leopold Maneuvers. [StatPearls. 2024] Leopold Maneuvers. Superville SS, Siccardi MA. StatPearls. 2024 Jan
• Review Labor with abnormal presentation and position. [Obstet Gynecol Clin North Am. ...] Review Labor with abnormal presentation and position. Stitely ML, Gherman RB. Obstet Gynecol Clin North Am. 2005 Jun; 32(2):165-79.

Recent Activity

• Delivery, Face and Brow Presentation - StatPearls Delivery, Face and Brow Presentation - StatPearls

Your browsing activity is empty.

Activity recording is turned off.

Turn recording back on

Connect with NLM

National Library of Medicine 8600 Rockville Pike Bethesda, MD 20894

Web Policies FOIA HHS Vulnerability Disclosure

Help Accessibility Careers

Fetal Presentation, Position, and Lie (Including Breech Presentation)

• Variations in Fetal Position and Presentation |

During pregnancy, the fetus can be positioned in many different ways inside the mother's uterus. The fetus may be head up or down or facing the mother's back or front. At first, the fetus can move around easily or shift position as the mother moves. Toward the end of the pregnancy the fetus is larger, has less room to move, and stays in one position. How the fetus is positioned has an important effect on delivery and, for certain positions, a cesarean delivery is necessary. There are medical terms that describe precisely how the fetus is positioned, and identifying the fetal position helps doctors to anticipate potential difficulties during labor and delivery.

Presentation refers to the part of the fetus’s body that leads the way out through the birth canal (called the presenting part). Usually, the head leads the way, but sometimes the buttocks (breech presentation), shoulder, or face leads the way.

Position refers to whether the fetus is facing backward (occiput anterior) or forward (occiput posterior). The occiput is a bone at the back of the baby's head. Therefore, facing backward is called occiput anterior (facing the mother’s back and facing down when the mother lies on her back). Facing forward is called occiput posterior (facing toward the mother's pubic bone and facing up when the mother lies on her back).

Lie refers to the angle of the fetus in relation to the mother and the uterus. Up-and-down (with the baby's spine parallel to mother's spine, called longitudinal) is normal, but sometimes the lie is sideways (transverse) or at an angle (oblique).

For these aspects of fetal positioning, the combination that is the most common, safest, and easiest for the mother to deliver is the following:

Head first (called vertex or cephalic presentation)

Facing backward (occiput anterior position)

Spine parallel to mother's spine (longitudinal lie)

Neck bent forward with chin tucked

Arms folded across the chest

If the fetus is in a different position, lie, or presentation, labor may be more difficult, and a normal vaginal delivery may not be possible.

Variations in fetal presentation, position, or lie may occur when

The fetus is too large for the mother's pelvis (fetopelvic disproportion).

The uterus is abnormally shaped or contains growths such as fibroids .

The fetus has a birth defect .

There is more than one fetus (multiple gestation).

Position and Presentation of the Fetus

Variations in fetal position and presentation.

Some variations in position and presentation that make delivery difficult occur frequently.

Occiput posterior position

In occiput posterior position (sometimes called sunny-side up), the fetus is head first (vertex presentation) but is facing forward (toward the mother's pubic bone—that is, facing up when the mother lies on her back). This is a very common position that is not abnormal, but it makes delivery more difficult than when the fetus is in the occiput anterior position (facing toward the mother's spine—that is facing down when the mother lies on her back).

When a fetus faces up, the neck is often straightened rather than bent,which requires more room for the head to pass through the birth canal. Delivery assisted by a vacuum device or forceps or cesarean delivery may be necessary.

Breech presentation

In breech presentation, the baby's buttocks or sometimes the feet are positioned to deliver first (before the head).

When delivered vaginally, babies that present buttocks first are more at risk of injury or even death than those that present head first.

The reason for the risks to babies in breech presentation is that the baby's hips and buttocks are not as wide as the head. Therefore, when the hips and buttocks pass through the cervix first, the passageway may not be wide enough for the head to pass through. In addition, when the head follows the buttocks, the neck may be bent slightly backwards. The neck being bent backward increases the width required for delivery as compared to when the head is angled forward with the chin tucked, which is the position that is easiest for delivery. Thus, the baby’s body may be delivered and then the head may get caught and not be able to pass through the birth canal. When the baby’s head is caught, this puts pressure on the umbilical cord in the birth canal, so that very little oxygen can reach the baby. Brain damage due to lack of oxygen is more common among breech babies than among those presenting head first.

In a first delivery, these problems may occur more frequently because a woman’s tissues have not been stretched by previous deliveries. Because of risk of injury or even death to the baby, cesarean delivery is preferred when the fetus is in breech presentation, unless the doctor is very experienced with and skilled at delivering breech babies or there is not an adequate facility or equipment to safely perform a cesarean delivery.

Breech presentation is more likely to occur in the following circumstances:

Labor starts too soon (preterm labor).

The uterus is abnormally shaped or contains abnormal growths such as fibroids .

Other presentations

In face presentation, the baby's neck arches back so that the face presents first rather than the top of the head.

In brow presentation, the neck is moderately arched so that the brow presents first.

Usually, fetuses do not stay in a face or brow presentation. These presentations often change to a vertex (top of the head) presentation before or during labor. If they do not, a cesarean delivery is usually recommended.

In transverse lie, the fetus lies horizontally across the birth canal and presents shoulder first. A cesarean delivery is done, unless the fetus is the second in a set of twins. In such a case, the fetus may be turned to be delivered through the vagina.

• Cookie Preferences

Copyright © 2024 Merck & Co., Inc., Rahway, NJ, USA and its affiliates. All rights reserved.

• Mammary Glands
• Fallopian Tubes
• Supporting Ligaments
• Reproductive System
• Gametogenesis
• Placental Development
• Maternal Adaptations
• Menstrual Cycle
• Antenatal Care
• Small for Gestational Age
• Large for Gestational Age
• RBC Isoimmunisation
• Prematurity
• Prolonged Pregnancy
• Multiple Pregnancy
• Miscarriage
• Recurrent Miscarriage
• Ectopic Pregnancy
• Hyperemesis Gravidarum
• Gestational Trophoblastic Disease
• Breech Presentation
• Abnormal lie, Malpresentation and Malposition
• Oligohydramnios
• Polyhydramnios
• Placenta Praevia
• Placental Abruption
• Pre-Eclampsia
• Gestational Diabetes
• Headaches in Pregnancy
• Haematological
• Obstetric Cholestasis
• Thyroid Disease in Pregnancy
• Epilepsy in Pregnancy
• Induction of Labour
• Operative Vaginal Delivery
• Prelabour Rupture of Membranes
• Caesarean Section
• Shoulder Dystocia
• Cord Prolapse
• Uterine Rupture
• Amniotic Fluid Embolism
• Primary PPH
• Secondary PPH
• Psychiatric Disease
• Postpartum Contraception
• Breastfeeding Problems
• Primary Dysmenorrhoea
• Amenorrhoea and Oligomenorrhoea
• Heavy Menstrual Bleeding
• Endometriosis
• Endometrial Cancer
• Adenomyosis
• Cervical Polyps
• Cervical Ectropion
• Cervical Intraepithelial Neoplasia + Cervical Screening
• Cervical Cancer
• Polycystic Ovary Syndrome (PCOS)
• Ovarian Cysts & Tumours
• Urinary Incontinence
• Genitourinary Prolapses
• Bartholin's Cyst
• Lichen Sclerosus
• Vulval Carcinoma
• Introduction to Infertility
• Female Factor Infertility
• Male Factor Infertility
• Female Genital Mutilation
• Barrier Contraception
• Combined Hormonal
• Progesterone Only Hormonal
• Intrauterine System & Device
• Emergency Contraception
• Pelvic Inflammatory Disease
• Genital Warts
• Genital Herpes
• Trichomonas Vaginalis
• Bacterial Vaginosis
• Vulvovaginal Candidiasis
• Obstetric History
• Gynaecological History
• Sexual History
• Obstetric Examination
• Speculum Examination
• Bimanual Examination
• Amniocentesis
• Chorionic Villus Sampling
• Hysterectomy
• Endometrial Ablation
• Tension-Free Vaginal Tape
• Contraceptive Implant
• Fitting an IUS or IUD

Abnormal Fetal lie, Malpresentation and Malposition

Original Author(s): Anna Mcclune Last updated: 1st December 2018 Revisions: 12

• 1 Definitions
• 2 Risk Factors
• 3.2 Presentation
• 3.3 Position
• 4 Investigations
• 5.1 Abnormal Fetal Lie
• 5.2 Malpresentation
• 5.3 Malposition

The lie, presentation and position of a fetus are important during labour and delivery.

In this article, we will look at the risk factors, examination and management of abnormal fetal lie, malpresentation and malposition.

Definitions

• Longitudinal, transverse or oblique
• Cephalic vertex presentation is the most common and is considered the safest
• Other presentations include breech, shoulder, face and brow
• Usually the fetal head engages in the occipito-anterior position (the fetal occiput facing anteriorly) – this is ideal for birth
• Other positions include occipito-posterior and occipito-transverse.

Note: Breech presentation is the most common malpresentation, and is covered in detail here .

Fig 1 – The two most common fetal presentations: cephalic and breech.

Risk Factors

The risk factors for abnormal fetal lie, malpresentation and malposition include:

• Multiple pregnancy
• Uterine abnormalities (e.g fibroids, partial septate uterus)
• Fetal abnormalities
• Placenta praevia
• Primiparity

Identifying Fetal Lie, Presentation and Position

The fetal lie and presentation can usually be identified via abdominal examination. The fetal position is ascertained by vaginal examination.

For more information on the obstetric examination, see here .

• Face the patient’s head
• Place your hands on either side of the uterus and gently apply pressure; one side will feel fuller and firmer – this is the back, and fetal limbs may feel ‘knobbly’ on the opposite side

Presentation

• Palpate the lower uterus (above the symphysis pubis) with the fingers of both hands; the head feels hard and round (cephalic) and the bottom feels soft and triangular (breech)
• You may be able to gently push the fetal head from side to side

The fetal lie and presentation may not be possible to identify if the mother has a high BMI, if she has not emptied her bladder, if the fetus is small or if there is polyhydramnios .

During labour, vaginal examination is used to assess the position of the fetal head (in a cephalic vertex presentation). The landmarks of the fetal head, including the anterior and posterior fontanelles, indicate the position.

Fig 2 – Assessing fetal lie and presentation.

Investigations

Any suspected abnormal fetal lie or malpresentation should be confirmed by an ultrasound scan . This could also demonstrate predisposing uterine or fetal abnormalities.

Abnormal Fetal Lie

If the fetal lie is abnormal, an external cephalic version (ECV) can be attempted – ideally between 36 and 38 weeks gestation.

ECV is the manipulation of the fetus to a cephalic presentation through the maternal abdomen.

It has an approximate success rate of 50% in primiparous women and 60% in multiparous women. Only 8% of breech presentations will spontaneously revert to cephalic in primiparous women over 36 weeks gestation.

Complications of ECV are rare but include fetal distress , premature rupture of membranes, antepartum haemorrhage (APH) and placental abruption. The risk of an emergency caesarean section (C-section) within 24 hours is around 1 in 200.

ECV is contraindicated in women with a recent APH, ruptured membranes, uterine abnormalities or a previous C-section .

Fig 3 – External cephalic version.

Malpresentation

The management of malpresentation is dependent on the presentation.

• Breech – attempt ECV before labour, vaginal breech delivery or C-section
• Brow – a C-section is necessary
• If the chin is anterior (mento-anterior) a normal labour is possible; however, it is likely to be prolonged and there is an increased risk of a C-section being required
• If the chin is posterior (mento-posterior) then a C-section is necessary
• Shoulder – a C-section is necessary

Malposition

90% of malpositions spontaneously rotate to occipito-anterior as labour progresses. If the fetal head does not rotate, rotation and operative vaginal delivery can be attempted. Alternatively a C-section can be performed.

• Usually the fetal head engages in the occipito-anterior position (the fetal occiput facing anteriorly) - this is ideal for birth

If the fetal lie is abnormal, an external cephalic version (ECV) can be attempted - ideally between 36 and 38 weeks gestation.

• Breech - attempt ECV before labour, vaginal breech delivery or C-section

Found an error? Is our article missing some key information? Make the changes yourself here!

Once you've finished editing, click 'Submit for Review', and your changes will be reviewed by our team before publishing on the site.

We use cookies to improve your experience on our site and to show you relevant advertising. To find out more, read our privacy policy .

Privacy Overview

An official website of the United States government

Here’s how you know

Official websites use .gov A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS A lock ( Lock Locked padlock icon ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

• Health Topics
• Drugs & Supplements
• Medical Tests
• Medical Encyclopedia
• About MedlinePlus
• Customer Support

Your baby in the birth canal

During labor and delivery, your baby must pass through your pelvic bones to reach the vaginal opening. The goal is to find the easiest way out. Certain body positions give the baby a smaller shape, which makes it easier for your baby to get through this tight passage.

The best position for the baby to pass through the pelvis is with the head down and the body facing toward the mother's back. This position is called occiput anterior.

Information

Certain terms are used to describe your baby's position and movement through the birth canal.

FETAL STATION

Fetal station refers to where the presenting part is in your pelvis.

• The presenting part. The presenting part is the part of the baby that leads the way through the birth canal. Most often, it is the baby's head, but it can be a shoulder, the buttocks, or the feet.
• Ischial spines. These are bone points on the mother's pelvis. Normally the ischial spines are the narrowest part of the pelvis.
• 0 station. This is when the baby's head is even with the ischial spines. The baby is said to be "engaged" when the largest part of the head has entered the pelvis.
• If the presenting part lies above the ischial spines, the station is reported as a negative number from -1 to -5.

In first-time moms, the baby's head may engage by 36 weeks into the pregnancy. However, engagement may happen later in the pregnancy, or even during labor.

This refers to how the baby's spine lines up with the mother's spine. Your baby's spine is between their head and tailbone.

Your baby will most often settle into a position in the pelvis before labor begins.

• If your baby's spine runs in the same direction (parallel) as your spine, the baby is said to be in a longitudinal lie. Nearly all babies are in a longitudinal lie.
• If the baby is sideways (at a 90-degree angle to your spine), the baby is said to be in a transverse lie.

FETAL ATTITUDE

The fetal attitude describes the position of the parts of your baby's body.

The normal fetal attitude is commonly called the fetal position.

• The head is tucked down to the chest.
• The arms and legs are drawn in towards the center of the chest.

Abnormal fetal attitudes include a head that is tilted back, so the brow or the face presents first. Other body parts may be positioned behind the back. When this happens, the presenting part will be larger as it passes through the pelvis. This makes delivery more difficult.

DELIVERY PRESENTATION

Delivery presentation describes the way the baby is positioned to come down the birth canal for delivery.

The best position for your baby inside your uterus at the time of delivery is head down. This is called cephalic presentation.

• This position makes it easier and safer for your baby to pass through the birth canal. Cephalic presentation occurs in about 97% of deliveries.
• There are different types of cephalic presentation, which depend on the position of the baby's limbs and head (fetal attitude).

If your baby is in any position other than head down, your doctor may recommend a cesarean delivery.

Breech presentation is when the baby's bottom is down. Breech presentation occurs about 3% of the time. There are a few types of breech:

• A complete breech is when the buttocks present first and both the hips and knees are flexed.
• A frank breech is when the hips are flexed so the legs are straight and completely drawn up toward the chest.
• Other breech positions occur when either the feet or knees present first.

The shoulder, arm, or trunk may present first if the fetus is in a transverse lie. This type of presentation occurs less than 1% of the time. Transverse lie is more common when you deliver before your due date, or have twins or triplets.

CARDINAL MOVEMENTS OF LABOR

As your baby passes through the birth canal, the baby's head will change positions. These changes are needed for your baby to fit and move through your pelvis. These movements of your baby's head are called cardinal movements of labor.

• This is when the widest part of your baby's head has entered the pelvis.
• Engagement tells your health care provider that your pelvis is large enough to allow the baby's head to move down (descend).
• This is when your baby's head moves down (descends) further through your pelvis.
• Most often, descent occurs during labor, either as the cervix dilates or after you begin pushing.
• During descent, the baby's head is flexed down so that the chin touches the chest.
• With the chin tucked, it is easier for the baby's head to pass through the pelvis.

Internal Rotation

• As your baby's head descends further, the head will most often rotate so the back of the head is just below your pubic bone. This helps the head fit the shape of your pelvis.
• Usually, the baby will be face down toward your spine.
• Sometimes, the baby will rotate so it faces up toward the pubic bone.
• As your baby's head rotates, extends, or flexes during labor, the body will stay in position with one shoulder down toward your spine and one shoulder up toward your belly.
• As your baby reaches the opening of the vagina, usually the back of the head is in contact with your pubic bone.
• At this point, the birth canal curves upward, and the baby's head must extend back. It rotates under and around the pubic bone.

External Rotation

• As the baby's head is delivered, it will rotate a quarter turn to be in line with the body.
• After the head is delivered, the top shoulder is delivered under the pubic bone.
• After the shoulder, the rest of the body is usually delivered without a problem.

Alternative Names

Shoulder presentation; Malpresentations; Breech birth; Cephalic presentation; Fetal lie; Fetal attitude; Fetal descent; Fetal station; Cardinal movements; Labor-birth canal; Delivery-birth canal

Barth WH. Malpresentations and malposition. In: Landon MB, Galan HL, Jauniaux ERM, et al, eds. Gabbe's Obstetrics: Normal and Problem Pregnancies . 8th ed. Philadelphia, PA: Elsevier; 2021:chap 17.

Kilpatrick SJ, Garrison E, Fairbrother E. Normal labor and delivery. In: Landon MB, Galan HL, Jauniaux ERM, et al, eds. Gabbe's Obstetrics: Normal and Problem Pregnancies . 8th ed. Philadelphia, PA: Elsevier; 2021:chap 11.

Review Date 11/10/2022

Updated by: John D. Jacobson, MD, Department of Obstetrics and Gynecology, Loma Linda University School of Medicine, Loma Linda, CA. Also reviewed by David C. Dugdale, MD, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.

Related MedlinePlus Health Topics

• Childbirth Problems

Learn how UpToDate can help you.

Select the option that best describes you

• Medical Professional
• Resident, Fellow, or Student
• Hospital or Institution
• Group Practice
• Patient or Caregiver
• Find in topic

RELATED TOPICS

INTRODUCTION

PATHOGENESIS AND RISK FACTORS

● The fetus does not fully occupy the pelvis, thus allowing a fetal extremity room to prolapse. Predisposing factors include early gestational age, multiple gestation, polyhydramnios, or a large maternal pelvis relative to fetal size [ 2,3 ].

● Membrane rupture occurs when the presenting part is still high, which allows flow of amniotic fluid to carry a fetal extremity, umbilical cord, or both toward the birth canal.

Fetal Presentation, Position, and Lie (Including Breech Presentation)

• Key Points |

Abnormal fetal lie or presentation may occur due to fetal size, fetal anomalies, uterine structural abnormalities, multiple gestation, or other factors. Diagnosis is by examination or ultrasonography. Management is with physical maneuvers to reposition the fetus, operative vaginal delivery , or cesarean delivery .

Terms that describe the fetus in relation to the uterus, cervix, and maternal pelvis are

Fetal presentation: Fetal part that overlies the maternal pelvic inlet; vertex (cephalic), face, brow, breech, shoulder, funic (umbilical cord), or compound (more than one part, eg, shoulder and hand)

Fetal position: Relation of the presenting part to an anatomic axis; for transverse presentation, occiput anterior, occiput posterior, occiput transverse

Fetal lie: Relation of the fetus to the long axis of the uterus; longitudinal, oblique, or transverse

Normal fetal lie is longitudinal, normal presentation is vertex, and occiput anterior is the most common position.

Abnormal fetal lie, presentation, or position may occur with

Fetopelvic disproportion (fetus too large for the pelvic inlet)

Fetal congenital anomalies

Uterine structural abnormalities (eg, fibroids, synechiae)

Multiple gestation

Several common types of abnormal lie or presentation are discussed here.

Transverse lie

Fetal position is transverse, with the fetal long axis oblique or perpendicular rather than parallel to the maternal long axis. Transverse lie is often accompanied by shoulder presentation, which requires cesarean delivery.

Breech presentation

There are several types of breech presentation.

Frank breech: The fetal hips are flexed, and the knees extended (pike position).

Complete breech: The fetus seems to be sitting with hips and knees flexed.

Single or double footling presentation: One or both legs are completely extended and present before the buttocks.

Types of breech presentations

Breech presentation makes delivery difficult ,primarily because the presenting part is a poor dilating wedge. Having a poor dilating wedge can lead to incomplete cervical dilation, because the presenting part is narrower than the head that follows. The head, which is the part with the largest diameter, can then be trapped during delivery.

Additionally, the trapped fetal head can compress the umbilical cord if the fetal umbilicus is visible at the introitus, particularly in primiparas whose pelvic tissues have not been dilated by previous deliveries. Umbilical cord compression may cause fetal hypoxemia.

Predisposing factors for breech presentation include

Preterm labor

Uterine abnormalities

Fetal anomalies

If delivery is vaginal, breech presentation may increase risk of

Umbilical cord prolapse

Birth trauma

Perinatal death

Face or brow presentation

In face presentation, the head is hyperextended, and position is designated by the position of the chin (mentum). When the chin is posterior, the head is less likely to rotate and less likely to deliver vaginally, necessitating cesarean delivery.

Brow presentation usually converts spontaneously to vertex or face presentation.

Occiput posterior position

The most common abnormal position is occiput posterior.

The fetal neck is usually somewhat deflexed; thus, a larger diameter of the head must pass through the pelvis.

Progress may arrest in the second phase of labor. Operative vaginal delivery or cesarean delivery is often required.

Position and Presentation of the Fetus

If a fetus is in the occiput posterior position, operative vaginal delivery or cesarean delivery is often required.

In breech presentation, the presenting part is a poor dilating wedge, which can cause the head to be trapped during delivery, often compressing the umbilical cord.

For breech presentation, usually do cesarean delivery at 39 weeks or during labor, but external cephalic version is sometimes successful before labor, usually at 37 or 38 weeks.

• Cookie Preferences

Copyright © 2024 Merck & Co., Inc., Rahway, NJ, USA and its affiliates. All rights reserved.

• presentation

: an activity in which someone shows, describes, or explains something to a group of people

: the way in which something is arranged, designed, etc. : the way in which something is presented

: the act of giving something to someone in a formal way or in a ceremony

Full Definition of PRESENTATION

First known use of presentation, related to presentation, other business terms, rhymes with presentation, definition of presentation for kids, medical definition of presentation, learn more about presentation.

• presentation copy
• presentation piece
• presentation time
• breech presentation
• face presentation

Seen & Heard

What made you want to look up presentation ? Please tell us where you read or heard it (including the quote, if possible).

• Spanish Central
• Learner's ESL Dictionary
• WordCentral for Kids
• Visual Dictionary
• SCRABBLE ® Word Finder
• Merriam-Webster's Unabridged Dictionary
• Britannica English - Arabic Translation
• Nglish - Spanish-English Translation
• Advertising Info
• Dictionary API
• Privacy Policy
• Terms of Use
• About Our Ads
• Browser Tools
• The Open Dictionary
• Browse the Dictionary
• Browse the Thesaurus
• Browse the Spanish-English Dictionary
• Browse the Medical Dictionary

• Dictionaries home
• American English
• Collocations
• German-English
• Grammar home
• Practical English Usage
• Learn & Practise Grammar (Beta)
• Word Lists home
• My Word Lists
• Recent additions
• Resources home
• Text Checker

Definition of presentation noun from the Oxford Advanced Learner's Dictionary

presentation

• presentation on/about somebody/something The sales manager will give a presentation on the new products.
• Several speakers will be making short presentations .
• The conference will begin with a keynote presentation by a leading industry figure.
• a slide/video/multimedia presentation
• presentation on

Take your English to the next level

The Oxford Learner’s Thesaurus explains the difference between groups of similar words. Try it for free as part of the Oxford Advanced Learner’s Dictionary app

Type your tag names separated by a space and hit enter

presentation

There's more to see -- the rest of this topic is available only to subscribers.

1. Download the Nursing Central app by Unbound Medicine

2. Select Try/Buy and follow instructions to begin your free 30-day trial

Want to regain access to Nursing Central?

Renew my subscription

Not now - I'd like more time to decide

Log in to Nursing Central

Forgot your password, forgot your username, contact support.

• unboundmedicine.com/support
• [email protected]
• 610-627-9090 (Monday - Friday, 9 AM - 5 PM EST.)

• More from M-W
• To save this word, you'll need to log in. Log In

presentation

Definition of presentation

• fairing [ British ]
• freebee
• largess

Examples of presentation in a Sentence

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'presentation.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

15th century, in the meaning defined at sense 1a

Phrases Containing presentation

• breech presentation

Dictionary Entries Near presentation

present arms

presentation copy

Cite this Entry

“Presentation.” Merriam-Webster.com Dictionary , Merriam-Webster, https://www.merriam-webster.com/dictionary/presentation. Accessed 6 May. 2024.

Kids Definition

Kids definition of presentation, medical definition, medical definition of presentation, more from merriam-webster on presentation.

Nglish: Translation of presentation for Spanish Speakers

Britannica English: Translation of presentation for Arabic Speakers

Britannica.com: Encyclopedia article about presentation

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

Can you solve 4 words at once?

Word of the day.

See Definitions and Examples »

Get Word of the Day daily email!

Popular in Grammar & Usage

More commonly misspelled words, your vs. you're: how to use them correctly, every letter is silent, sometimes: a-z list of examples, more commonly mispronounced words, how to use em dashes (—), en dashes (–) , and hyphens (-), popular in wordplay, 12 star wars words, the words of the week - may 3, a great big list of bread words, 10 scrabble words without any vowels, 8 uncommon words related to love, games & quizzes.

• Register-org
• Subscriptions

Recent Posts

• Balancing Work and Wellness: Health Management Tips for Busy Women
• Transform Your Health: A Beginner’s Guide To Effective Exercise
• Lichen Planopilaris: Confronting The Inflammatory Battle Against Hair Loss
• Stressed Out? Watch Your Veins!
• Office Live, Healthy Veins: Quick Tips
• Entries feed
• Comments feed
• WordPress.org
• Allergy and Immunology
• Anesthesiology
• Basic Science
• Cardiothoracic Surgery
• Cardiovascular
• Complementary Medicine
• Critical Care Medicine
• Dermatology
• Emergency Medicine
• Endocrinology, Diabetes and Metabolism
• Gastroenterology and Hepatology
• Hematology, Oncology and Palliative Medicine
• Internal Medicine
• Medical Education
• Neonatal – Perinatal Medicine
• Neurosurgery
• Nursing & Midwifery & Medical Assistant
• Obstetrics & Gynecology
• Opthalmology
• Orthopaedics
• Otolaryngology
• Physical Medicine and Rehabilitation
• Plastic Reconstructive Surgery
• Pulmolory and Respiratory
• Rheumatology

Search Engine

Malpresentations and malpositions.

Published on 09/03/2015 by admin

Filed under Obstetrics & Gynecology

Last modified 09/03/2015

This article have been viewed 9329 times

Introduction

Malpresentation.

Malposition

During pregnancy, abdominal palpation should aim to define the lie, presentation and position of the fetus. The lie refers to the long axis of the fetus in relation to the long axis of the uterus. Usually, the fetus is longitudinal, but occasionally it may be transverse or oblique. The presentation is that part of the fetus which is at the pelvic brim, in other words the part of the fetus presenting to the pelvic inlet. Normal presentation is the vertex of the fetal head and the word ‘malpresentation’ describes any non-vertex presentation. This may be of the face, brow, breech, or some other part of the body if the lie is oblique or transverse.

The position of the fetus refers to the way in which the presenting part is positioned in relation to the maternal pelvis. Strictly speaking this refers to any presenting part, but here it will be considered in relation to those fetuses presenting head first (cephalic). As we have seen, the head is usually occipitotransverse at the pelvic brim and rotates to occipitoanterior at the pelvic floor. ‘Malposition’ is when the head, coming vertex first, does not rotate to occipitoanterior, presenting instead as persistent occipitotransverse or occipitoposterior.

As described above, ‘malpresentation’ is a term used to describe any non-vertex presentation. Over 95% of fetuses are in cephalic presentation at term. Malpresentations include face presentation, brow presentation and breech presentation. When the fetus has a cephalic presentation, the presenting diameter is dependent on the degree of flexion or extension of the fetal head – deflexed and brow presentations offer a wide diameter to the pelvic inlet ( Table 45.1 and Fig. 45.1 ).

Presenting diameters of the fetal head

Fig. 45.1 The presenting diameter is dependent on the degree of flexion or extension of the fetal head.

As the fetal skull is made up of individual bony plates (the occipital, sphenoid, temporal and ethmoid bones), which are joined by cartilaginous sutures (the frontal, sagittal, lambdoid and coronal sutures), it has the potential to be ‘moulded’ during labour. This allows the head to fit the birth canal more closely (Fig. 45.2) . Moulding should be distinguished from caput succedaneum, which refers to oedema of the presenting part of the scalp. Both moulding and caput can occur in any cephalic presentation, but are more likely to occur in malpresentation. The presence or absence of moulding and caput should be documented during each vaginal examination in labour; excessive moulding and caput are suggestive of an obstructed labour due to cephalopelvic disproportion.

Fig. 45.2 ‘Moulding’ refers to the change in shape of the fetal skull during labour as it ‘moulds’ to the birth canal.

Caput refers to oedema of the presenting part of the scalp.

Face presentation

This occurs in about 1:500 births and occurs when the fetal head extends right back (hyperextended so that the occiput touches the fetal back) (Fig. 45.3 A) . It is associated with prematurity, tumours of the fetal neck, loops of cord around the fetal neck, fetal macrosomia and anencephaly. Face presentation is usually only recognized after the onset of labour and, if the face is swollen (Fig. 45.3 B) , it is easy to confuse this presentation with that of a breech. The position of the face is described with reference to the chin, using the prefix ‘mento’. The presenting diameter is submentobregmatic (9.5 cm) (Fig. 45.1) .

Fig. 45.3 Face presentation.

(A) The head enters the pelvic brim in the transverse position. (B) Most rotate to the mentoanterior position and deliver without problems. (C) Those that rotate to mentoposterior will obstruct. (D) Face presentation is often associated with oedema and bruising. This baby recovered without problems.

The face usually enters the pelvis with the chin in the transverse position (mentotransverse) and 90% rotate to mentoanterior so that the head is born with flexion (Fig. 45.3 C) . If mentoposterior, the extending head presents an increasingly wider diameter to the pelvis, leading to worsening relative cephalopelvic disproportion and impacted obstruction (Fig. 45.3 D) . A caesarean section is usually required.

Brow presentation

This occurs in only approximately 1:700 and 1:1500 births and is the least favourable for delivery (Fig. 45.4) . The presenting diameter is mentovertical, measuring 14 cm. The supraorbital ridges and the bridge of the nose will be palpable on vaginal examination. The head may flex to become a vertex presentation or extend to a face presentation in early labour. If the brow presentation persists, a caesarean section will be required.

Fig. 45.4 Brow presentation.

Breech presentation

Breech presentation describes a fetus presenting bottom first. The incidence is around 40% at 20 weeks, 25% at 32 weeks and only 3–4% at term. The chance of a breech presentation turning spontaneously after 38 weeks is < 4%. Breech presentation is associated with multiple pregnancy, bicornuate uterus, fibroids, placenta praevia, polyhydramnios and oligohydramnios. It may also rarely be associated with fetal anomaly, particularly neural tube defects, neuromuscular disorders and autosomal trisomies. At term, 65% of breech presentations are frank (extended) with the remainder being flexed or footling (Fig. 45.5) . Footling breech carries a 5–20% risk of cord prolapse ( p. 367 ).

Fig. 45.5 Breech presentation.

Those presenting by the breech may be (A) extended (or frank); (B) flexed; or (C) footling.

Mode of delivery

Share this:.

• Click to share on Twitter (Opens in new window)
• Click to share on Facebook (Opens in new window)

Related posts:

Clinical Obstetrics and Gynaecology

• Cambridge Dictionary +Plus

Meaning of presentation in English

Your browser doesn't support HTML5 audio

presentation noun ( EVENT )

• talk She will give a talk on keeping kids safe on the internet.
• lecture The lecture is entitled "War and the Modern American Presidency".
• presentation We were given a presentation of progress made to date.
• speech You might have to make a speech when you accept the award.
• address He took the oath of office then delivered his inaugural address.
• oration It was to become one of the most famous orations in American history.
• The presentation was a collaborative effort by all the children in the class .
• The charity invited the press to a presentation of its plans for the future .
• The magazine asked its readers to send in their comments about the new style of presentation.
• Jenny's retiring and I think there's going to be a small presentation this afternoon .
• Graduates must be in full academic dress at the presentation of certificates .
• call for papers
• extemporize
• maiden speech
• talk at someone

You can also find related words, phrases, and synonyms in the topics:

presentation noun ( APPEARANCE )

• adverse conditions
• good/bad karma idiom
• have it in you idiom
• unaffiliated
• undercurrent

presentation | American Dictionary

Presentation | business english, examples of presentation, collocations with presentation, presentation.

These are words often used in combination with presentation .

Click on a collocation to see more examples of it.

Translations of presentation

Get a quick, free translation!

Word of the Day

tape measure

a strip of plastic or metal used for measuring that can be rolled up when not being used

Hidden in plain sight: words and phrases connected with hiding

Learn more with +Plus

• Recent and Recommended {{#preferredDictionaries}} {{name}} {{/preferredDictionaries}}
• Definitions Clear explanations of natural written and spoken English English Learner’s Dictionary Essential British English Essential American English
• Grammar and thesaurus Usage explanations of natural written and spoken English Grammar Thesaurus
• Pronunciation British and American pronunciations with audio English Pronunciation
• English–Chinese (Simplified) Chinese (Simplified)–English
• English–Chinese (Traditional) Chinese (Traditional)–English
• English–Dutch Dutch–English
• English–French French–English
• English–German German–English
• English–Indonesian Indonesian–English
• English–Italian Italian–English
• English–Japanese Japanese–English
• English–Norwegian Norwegian–English
• English–Polish Polish–English
• English–Portuguese Portuguese–English
• English–Spanish Spanish–English
• English–Swedish Swedish–English
• Dictionary +Plus Word Lists
• presentation (EVENT)
• presentation (APPEARANCE)
• American    Noun
• Business    Noun
• Collocations
• Translations
• All translations

To add presentation to a word list please sign up or log in.

Add presentation to one of your lists below, or create a new one.

{{message}}

Something went wrong.

There was a problem sending your report.

• Find Flashcards
• Why It Works
• Tutors & resellers
• Content partnerships
• Teachers & professors
• Employee training

Brainscape's Knowledge Genome TM

Entrance exams, professional certifications.

• Foreign Languages
• Medical & Nursing

Humanities & Social Studies

Mathematics, health & fitness, business & finance, technology & engineering, food & beverage, random knowledge, see full index, 40. definition of the presentation, position, and posture of the foetus in cattle. normal and abnormal presentations in cattle. flashcards preview, farm animal final > 40. definition of the presentation, position, and posture of the foetus in cattle. normal and abnormal presentations in cattle. > flashcards.

Normal presentation?

Presentation, position, and posture describes how the foetus lays in the pregnant uterus or within the birth canal

1.Presentation

Relation of the long axis of the foetus to that of the dam

Normal: longitudinal presentation

Longitudinal anterior presentation

Normal presentation

Abnormal presentation

Dorso-transverse presentation

ventro -transverse presentation

abnormal presentation

Oblique ventro vertical presentation

and no pic oblique dorso vertical presentation

Differentiation of normal presentations?

(Anterior presentation)

Differentiation of Normal (longitudinal) Presentations

Anterior presentation

• Metacarpophalangeal joint (fetlock) and the carpus joint are flexed to the same direction
• Bony knob (tuber olecrani) is present at the second joint proximal to the fetlock
• In dorsal position of the foetus the palmar sides of the forelimbs are facing vertical
• Recognition of the head and neck (mouth, nose, ears, trachea, mane)

Differentation of normal presentation?

(Posterior presentation)

Posterior presentation

• Metatarsophalangeal joint (fetlock) and the first joint proximal (tarsal) to that are flexed to the opposite

• Bony knob (tarsus) is present at the first joint proximal to the fetlock
• In dorsal position of the foetus the plantar sides of the hind limbs are facing dorsally
• Recognition of tail, anus, umbilical cord, testis, scrotum

Relation of the vertebral column of the foetus to that of the dam

Normal: dorsal (upright) position

Relation of the head, neck, and legs of the foetus to its trunk

Normal: a) during pregnancy: flexed

b) during parturition: extended

Predisposing factors for abnormal postures

• Premature birth
• Any type of uterine inertia
• Reduction in the intrauterine space

Abnormal head positions?

Abnormal forelimb presentations?

Abnormal Hindlimb presentation?

Normal presentations?

Normal presentations.

• During pregnancy; longitudinal presentation (anterior or posterior)

Dorsal (upright) position (ventral in equine)

Flexed posture

• During parturition; same as above but extended posture

Decks in Farm Animal Final Class (116):

• 1.Skin Diseases Of Cattle
• 2. Diseases Of The Lungs And Upper Airways In Ruminants
• 3. Disease Of The Oral Cavity And The Oesophagus In Ruminants
• 4. Diseases Of The Intestines In Ruminants
• 5. Diagnostics And Treatment Of Liver Diseases In Ruminants.
• 6. Cardiologic And Hemopoietic Diseases In Ruminants
• 7. Diseases Of The Kidney And The Excretory System In Ruminants
• 8. Neurological Diseases In Cattle
• 9. Biochemical Disorders Of The Rumen
• 10. Metabolic Diseases In Ruminants
• 11. Deficiencies Of Certain Antioxidants (Beta Carotene, Vitamin E) In Cattle.
• 12. Rumenotomy In Cattle
• 13. Hardware Disease (Traumatic Reticuloperitonitis): Incidence, Etiology/Cause, Predisposing Factors And Pathogenesis
• 14. Hardware Disease (Traumatic Reticuloperitonitis): Clinical Signs, Local And/Or Systemic Consequences, Diagnosis, And Treatment
• 15. Hoflund Syndrome
• 16. Anatomy Of The Abomasum, Diseases Of The Abomasum (List), Abomasal Displacement: Forms, Incidence, Etiology/Causes, And Predisposing Factors
• 17. Pathogenesis Of The Abomasal Displacement, General And Local Consequences Of Abomasal Displacement
• 18. Clinical Signs And Diagnosis Of The Left Sided Abomasal Displacement
• 19. Clinical Signs And Diagnosis Of The Right Sided Abomasal Displacement
• 20. Abomasitis, Abomasal Ulcer
• 21. Abomasal Impaction And Reflux Syndrome
• 22. Therapeutic Approaches Of Abomasal Displacement
• 23. Proximal Lumbar Paravertebral Nerve Block In Cattle
• 24. Distal Lumbar Paravertebral Nerve Block In Cattle
• 25. Inverted L Paralumbar Anaesthesia, Anaesthesia Of The Distal Limb Via Vascular (Iv) Infusion, Anaesthesia Of The Horn (Cornual Nerve Block) In Cattle
• 26. Anaesthesia Of The Teat In Cattle
• 27. Epidural Anaesthesia In Cattle
• 28. Forms Of General Anaesthesia In Cattle, Commonly Used Drugs, And Drug Combinations
• 29. Approaches, Indications, And Contraindications Of Cattle Abdominal Surgery
• 30. The Bony And The Soft Birth Canal In Cattle
• 31. Anatomy And Examination Techniques Of The Genital Tract Of The Cow
• 32. Ancillary Diagnostics (Bacteriology, Cytology, Biopsy) In The Diagnostics Of The Female Genital Tract In Cattle.
• 33. Pharmacological Treatment Of The Reproductive Cycle In Cattle
• 34. Pregnancy Determination In Cattle
• 35. Clinical Features Of Pregnancy Proteins In Cattle
• 36. Clinical Management Of Cattle Twin Pregnancy
• 37. Embryonic And Foetal Losses In Cattle
• 38. Dislocations Of The Pregnant Uterus, Labour Activity And Uterine Inertia In Cattle
• 39. Enlargement Of The Soft Birth Canal In Cattle. Instruments Of Obstetrical Aid In Cattle.
• 40. Definition Of The Presentation, Position, And Posture Of The Foetus In Cattle. Normal And Abnormal Presentations In Cattle.
• 41. Deviations Of The Head And Clinical Management In Cattle.
• 42. Deviations Of The Forelimbs And Clinical Management In Cattle
• 43. Deviations Of The Hindlimbs And Clinical Management In Cattle.
• 44. Lubricants And Labour Pain Management In Cattle
• 45. Caesarean Section In Cows: Indications, Contraindications, Surgical Restraint, Preparation Of Abdominal Wall
• 46. Caesarean Section In Cows: Anaesthesia Of The Abdominal Wall, Incision, Abdominal Manipulation, Closure Of The Abdominal Wall
• 47. Fetotomy: Conditions, Equipment, Preparation, And Steps Of The Most Often Used Techniques In Cows
• 48. Pathophysiology, Classification, And Treatment Of Vaginal Prolapse In Cows
• 49. Pathophysiology, Clinical Aspects, And Treatment Of Uterine Prolapse In Cows
• 50. The Management Of Retained Foetal Membranes In Cattle
• 51. Phases, Processes And Influencing Factors Of Involution In Cattle
• 52. Bacterial Complications Of Involution In Cattle (Cause, Symptoms, Diagnostics, Treatment)
• 53. Foetal Monsters In Cattle
• 54. The Most Important Elements Of Calf Care In The Perinatal Period
• 55. Examination, Drug Administration And Sample Collection In Calves
• 56. The Importance Of Automatic Systems In The Diagnostics Of Diseases In Cattle
• 57. The Importance Of Automatic Systems In The Prediction Of Calving In Cattle
• 58. Anatomy Of The Udder And Clinical Consequences. Defence Mechanisms Of The Udder In Cattle.
• 59. Mastitis Diagnosis And Treatment In Cattle
• 60. Surgery Of The Bovine Mammary Gland In Cattle
• 61. Clinical Practice Of Drying Off In Cattle
• 62. Anatomical Features Of The Bovine Hoof. Locomotion Scoring
• 63. Infectious Hoof Diseases In Cattle
• 64. Non Infectious Hoof Diseases In Cattle
• 65. Treatment Of Arthritis And Traumatic Injuries Of The Hoof In Cattle
• 66. Elements Of Foot Care In Small Ruminants On Individual And Herd Leve
• 67. Causes Of Lameness In Small Ruminants (Symptoms, Characteristics, Treatment)
• 68. Anaesthesia In Small Ruminants
• 69. Small Ruminant Medicine: Lambing And Dystocia
• 70. Small Ruminant Medicine: Incomplete Cervical Dilation, Uterine Torsion, Uterine Inertia
• 71. Caesarean Section In Small Ruminants
• 72. Small Ruminant Medicine: Prolapse Of The Uterus And Vagina
• 73. Small Ruminant Medicine: Metritis
• 74. Mastitis In Small Ruminants
• 75. Small Ruminant Medicine: Rupture Of The Prepubic Tendon, Rupture Of The Uterus, Evisceration Through Vaginal Tear, Rectal Prolapse
• 76: Hypovitaminosis In Swine Rare (Intensive Farming And Nutrition)
• Topic 77. Pss (Porcine Stress Syndrome) Metabolic Disease
• 78. Cardiological And Haemopoietic Disease Of Swine
• 79. Diseases Of The Gi Tract In Swine
• 80. Disease Of Respiratory Tract In Swine
• 83. Locomotor Diseases In Piglets And Growers
• 84. Locomotor Diseases In Sows
• 85. Arthritis In Swine, Septic Laminitis
• 86. Viral And Bacterial Diseases Of The Nervous System In Swine
• 87. Congenital Tremors, Salt Poisoning In Swine
• 88. Congenital Skin Diseases In Swine
• 89. Infectious Skin Diseases In Swine
• 90. Non Infectious Skin Diseases In Swine
• 91. Parenteral Drug Administration And Sample Collection Techniques In Swine
• 92. Oral Drug Administration In Swine
• 93. Types Of Anaesthesia In Swine
• 94. Drugs Of Anaesthesia In Swine
• 95. Teasing Boars (Use, Operations)
• 96. Main Features Of The Boar’s Ejaculate. Method Of Boar Semen Collection And Preservation
• 97. Age Of Puberty Of Boars, ’On Farm’ Use Of Boars, Proper ’On Farm’ Boar: Sow Rate
• 98. Most Frequent Morphological Defects Of Boar Semen And Diagnostic Methods Of Them
• 99. Mating Behaviour And Symptoms Of Heat In Swine, Including Differences Of Gilts And Sows
• 100.Methods Of Searching For Gilts And Sows In Heating
• 101.Oestrous Induction And Synchronization Methods In Swine
• 102.Steps Of Artificial Insemination In Pig Practice
• 103. Reproductive Management At The Pig Farm.
• 104.Most Frequent Disturbances Of Sexual Maturation In Gilts. ’On Farm’ Diagnostic Methods And Methods Of Prevention/Therapy
• 105.Pregnancy Diagnosis In Pigs
• 106.Implantation Of Sows In The Farrowing Unit. Traditional And Modern Farrowing Buildings
• 107.Aims And Methods Of Farrowing Synchronization At The Pig Farm
• 108.Phases Of Farrowing
• 109.Caesarean Section In Sows (Indication, Anaesthesia, Preparation)
• 110.Caesarean Section In Sows (From Laparotomy Until Aftercare)
• 111.Uterine And Cervical Prolapse In Swine
• 112.Prolapse Of Rectum And Vulval Haematoma In Swine
• 113.Phases Of Puerperium In Sows
• 114.Most Important Disturbances In The Farrowing Unit
• 115.Caring For New Born Piglets (Umbilical Haemorrhage, Artificial Feeding, Iron Supplementation)
• 116.Caring For New Born Piglets (Docking (Tail Clipping), Teeth Clipping, Castration)
• 117.Castration Of Grower Finisher Pig And Boar
• 118.Cryptorchidism And Castration Of Piglets With Inguinal Hernia
• Corporate Training
• Teachers & Schools
• Android App
• Help Center
• Law Education
• All Subjects A-Z
• All Certified Classes
• Earn Money!

An official website of the United States government

Here’s how you know

The .gov means it’s official. Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

The site is secure. The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Take action

• Report an antitrust violation
• File adjudicative documents
• Find banned debt collectors
• View competition guidance
• Competition Matters Blog

New HSR thresholds and filing fees for 2024

View all Competition Matters Blog posts

We work to advance government policies that protect consumers and promote competition.

View Policy

Search or browse the Legal Library

Find legal resources and guidance to understand your business responsibilities and comply with the law.

Browse legal resources

• Find policy statements
• Submit a public comment

Vision and Priorities

Memo from Chair Lina M. Khan to commission staff and commissioners regarding the vision and priorities for the FTC.

Technology Blog

Consumer facing applications: a quote book from the tech summit on ai.

View all Technology Blog posts

Advice and Guidance

Learn more about your rights as a consumer and how to spot and avoid scams. Find the resources you need to understand how consumer protection law impacts your business.

• Report fraud
• Report identity theft
• Register for Do Not Call
• Sign up for consumer alerts
• Get Business Blog updates
• Get your free credit report
• Find refund cases
• Order bulk publications
• Consumer Advice
• Shopping and Donating
• Credit, Loans, and Debt
• Jobs and Making Money
• Unwanted Calls, Emails, and Texts
• Identity Theft and Online Security
• Business Guidance
• Advertising and Marketing
• Credit and Finance
• Privacy and Security
• By Industry
• For Small Businesses
• Browse Business Guidance Resources
• Business Blog

Servicemembers: Your tool for financial readiness

Visit militaryconsumer.gov

Get consumer protection basics, plain and simple

Visit consumer.gov

Learn how the FTC protects free enterprise and consumers

Visit Competition Counts

Looking for competition guidance?

• Competition Guidance

News and Events

Latest news, ftc order bans former pioneer ceo from exxon board seat in exxon-pioneer deal.

View News and Events

Upcoming Event

Older adults and fraud: what you need to know.

View more Events

Sign up for the latest news

Follow us on social media

-->   -->   -->   -->   -->  

Playing it Safe: Explore the FTC's Top Video Game Cases

Learn about the FTC's notable video game cases and what our agency is doing to keep the public safe.

Latest Data Visualization

FTC Refunds to Consumers

Explore refund statistics including where refunds were sent and the dollar amounts refunded with this visualization.

About the FTC

Our mission is protecting the public from deceptive or unfair business practices and from unfair methods of competition through law enforcement, advocacy, research, and education.

Learn more about the FTC

Meet the Chair

Lina M. Khan was sworn in as Chair of the Federal Trade Commission on June 15, 2021.

Chair Lina M. Khan

Looking for legal documents or records? Search the Legal Library instead.

• Cases and Proceedings
• Premerger Notification Program
• Merger Review
• Anticompetitive Practices
• Competition and Consumer Protection Guidance Documents
• Warning Letters
• Consumer Sentinel Network
• Criminal Liaison Unit
• FTC Refund Programs
• Notices of Penalty Offenses
• Advocacy and Research
• Advisory Opinions
• Cooperation Agreements
• Federal Register Notices
• Public Comments
• Policy Statements
• International
• Office of Technology Blog
• Military Consumer
• Consumer.gov
• Bulk Publications
• Data and Visualizations
• Stay Connected
• Commissioners and Staff
• Bureaus and Offices
• Budget and Strategy
• Office of Inspector General
• Careers at the FTC

Fact Sheet on FTC’s Proposed Final Noncompete Rule

• Competition
• Office of Policy Planning
• Bureau of Competition

The following outline provides a high-level overview of the FTC’s proposed final rule :

• Specifically, the final rule provides that it is an unfair method of competition—and therefore a violation of Section 5 of the FTC Act—for employers to enter into noncompetes with workers after the effective date.
• Fewer than 1% of workers are estimated to be senior executives under the final rule.
• Specifically, the final rule defines the term “senior executive” to refer to workers earning more than $151,164 annually who are in a “policy-making position.”
• Reduced health care costs: $74-$194 billion in reduced spending on physician services over the next decade.
• New business formation: 2.7% increase in the rate of new firm formation, resulting in over 8,500 additional new businesses created each year.
• This reflects an estimated increase of about 3,000 to 5,000 new patents in the first year noncompetes are banned, rising to about 30,000-53,000 in the tenth year.
• This represents an estimated increase of 11-19% annually over a ten-year period.
• The average worker’s earnings will rise an estimated extra $524 per year. 

The Federal Trade Commission develops policy initiatives on issues that affect competition, consumers, and the U.S. economy. The FTC will never demand money, make threats, tell you to transfer money, or promise you a prize. Follow the  FTC on social media , read  consumer alerts  and the  business blog , and  sign up to get the latest FTC news and alerts .

Press Release Reference

Contact information, media contact.

Victoria Graham Office of Public Affairs 415-848-5121