scientific research abstract

Writing an Abstract for Your Research Paper

Definition and Purpose of Abstracts

An abstract is a short summary of your (published or unpublished) research paper, usually about a paragraph (c. 6-7 sentences, 150-250 words) long. A well-written abstract serves multiple purposes:

• an abstract lets readers get the gist or essence of your paper or article quickly, in order to decide whether to read the full paper;
• an abstract prepares readers to follow the detailed information, analyses, and arguments in your full paper;
• and, later, an abstract helps readers remember key points from your paper.

It’s also worth remembering that search engines and bibliographic databases use abstracts, as well as the title, to identify key terms for indexing your published paper. So what you include in your abstract and in your title are crucial for helping other researchers find your paper or article.

If you are writing an abstract for a course paper, your professor may give you specific guidelines for what to include and how to organize your abstract. Similarly, academic journals often have specific requirements for abstracts. So in addition to following the advice on this page, you should be sure to look for and follow any guidelines from the course or journal you’re writing for.

The Contents of an Abstract

Abstracts contain most of the following kinds of information in brief form. The body of your paper will, of course, develop and explain these ideas much more fully. As you will see in the samples below, the proportion of your abstract that you devote to each kind of information—and the sequence of that information—will vary, depending on the nature and genre of the paper that you are summarizing in your abstract. And in some cases, some of this information is implied, rather than stated explicitly. The Publication Manual of the American Psychological Association , which is widely used in the social sciences, gives specific guidelines for what to include in the abstract for different kinds of papers—for empirical studies, literature reviews or meta-analyses, theoretical papers, methodological papers, and case studies.

Here are the typical kinds of information found in most abstracts:

• the context or background information for your research; the general topic under study; the specific topic of your research
• the central questions or statement of the problem your research addresses
• what’s already known about this question, what previous research has done or shown
• the main reason(s) , the exigency, the rationale , the goals for your research—Why is it important to address these questions? Are you, for example, examining a new topic? Why is that topic worth examining? Are you filling a gap in previous research? Applying new methods to take a fresh look at existing ideas or data? Resolving a dispute within the literature in your field? . . .
• your research and/or analytical methods
• your main findings , results , or arguments
• the significance or implications of your findings or arguments.

Your abstract should be intelligible on its own, without a reader’s having to read your entire paper. And in an abstract, you usually do not cite references—most of your abstract will describe what you have studied in your research and what you have found and what you argue in your paper. In the body of your paper, you will cite the specific literature that informs your research.

When to Write Your Abstract

Although you might be tempted to write your abstract first because it will appear as the very first part of your paper, it’s a good idea to wait to write your abstract until after you’ve drafted your full paper, so that you know what you’re summarizing.

What follows are some sample abstracts in published papers or articles, all written by faculty at UW-Madison who come from a variety of disciplines. We have annotated these samples to help you see the work that these authors are doing within their abstracts.

Choosing Verb Tenses within Your Abstract

The social science sample (Sample 1) below uses the present tense to describe general facts and interpretations that have been and are currently true, including the prevailing explanation for the social phenomenon under study. That abstract also uses the present tense to describe the methods, the findings, the arguments, and the implications of the findings from their new research study. The authors use the past tense to describe previous research.

The humanities sample (Sample 2) below uses the past tense to describe completed events in the past (the texts created in the pulp fiction industry in the 1970s and 80s) and uses the present tense to describe what is happening in those texts, to explain the significance or meaning of those texts, and to describe the arguments presented in the article.

The science samples (Samples 3 and 4) below use the past tense to describe what previous research studies have done and the research the authors have conducted, the methods they have followed, and what they have found. In their rationale or justification for their research (what remains to be done), they use the present tense. They also use the present tense to introduce their study (in Sample 3, “Here we report . . .”) and to explain the significance of their study (In Sample 3, This reprogramming . . . “provides a scalable cell source for. . .”).

Sample Abstract 1

From the social sciences.

Reporting new findings about the reasons for increasing economic homogamy among spouses

Gonalons-Pons, Pilar, and Christine R. Schwartz. “Trends in Economic Homogamy: Changes in Assortative Mating or the Division of Labor in Marriage?” Demography , vol. 54, no. 3, 2017, pp. 985-1005.

Sample Abstract 2

From the humanities.

Analyzing underground pulp fiction publications in Tanzania, this article makes an argument about the cultural significance of those publications

Emily Callaci. “Street Textuality: Socialism, Masculinity, and Urban Belonging in Tanzania’s Pulp Fiction Publishing Industry, 1975-1985.” Comparative Studies in Society and History , vol. 59, no. 1, 2017, pp. 183-210.

Sample Abstract/Summary 3

From the sciences.

Reporting a new method for reprogramming adult mouse fibroblasts into induced cardiac progenitor cells

Lalit, Pratik A., Max R. Salick, Daryl O. Nelson, Jayne M. Squirrell, Christina M. Shafer, Neel G. Patel, Imaan Saeed, Eric G. Schmuck, Yogananda S. Markandeya, Rachel Wong, Martin R. Lea, Kevin W. Eliceiri, Timothy A. Hacker, Wendy C. Crone, Michael Kyba, Daniel J. Garry, Ron Stewart, James A. Thomson, Karen M. Downs, Gary E. Lyons, and Timothy J. Kamp. “Lineage Reprogramming of Fibroblasts into Proliferative Induced Cardiac Progenitor Cells by Defined Factors.” Cell Stem Cell , vol. 18, 2016, pp. 354-367.

Sample Abstract 4, a Structured Abstract

Reporting results about the effectiveness of antibiotic therapy in managing acute bacterial sinusitis, from a rigorously controlled study

Note: This journal requires authors to organize their abstract into four specific sections, with strict word limits. Because the headings for this structured abstract are self-explanatory, we have chosen not to add annotations to this sample abstract.

Wald, Ellen R., David Nash, and Jens Eickhoff. “Effectiveness of Amoxicillin/Clavulanate Potassium in the Treatment of Acute Bacterial Sinusitis in Children.” Pediatrics , vol. 124, no. 1, 2009, pp. 9-15.

“OBJECTIVE: The role of antibiotic therapy in managing acute bacterial sinusitis (ABS) in children is controversial. The purpose of this study was to determine the effectiveness of high-dose amoxicillin/potassium clavulanate in the treatment of children diagnosed with ABS.

METHODS : This was a randomized, double-blind, placebo-controlled study. Children 1 to 10 years of age with a clinical presentation compatible with ABS were eligible for participation. Patients were stratified according to age (<6 or ≥6 years) and clinical severity and randomly assigned to receive either amoxicillin (90 mg/kg) with potassium clavulanate (6.4 mg/kg) or placebo. A symptom survey was performed on days 0, 1, 2, 3, 5, 7, 10, 20, and 30. Patients were examined on day 14. Children’s conditions were rated as cured, improved, or failed according to scoring rules.

RESULTS: Two thousand one hundred thirty-five children with respiratory complaints were screened for enrollment; 139 (6.5%) had ABS. Fifty-eight patients were enrolled, and 56 were randomly assigned. The mean age was 6630 months. Fifty (89%) patients presented with persistent symptoms, and 6 (11%) presented with nonpersistent symptoms. In 24 (43%) children, the illness was classified as mild, whereas in the remaining 32 (57%) children it was severe. Of the 28 children who received the antibiotic, 14 (50%) were cured, 4 (14%) were improved, 4(14%) experienced treatment failure, and 6 (21%) withdrew. Of the 28children who received placebo, 4 (14%) were cured, 5 (18%) improved, and 19 (68%) experienced treatment failure. Children receiving the antibiotic were more likely to be cured (50% vs 14%) and less likely to have treatment failure (14% vs 68%) than children receiving the placebo.

CONCLUSIONS : ABS is a common complication of viral upper respiratory infections. Amoxicillin/potassium clavulanate results in significantly more cures and fewer failures than placebo, according to parental report of time to resolution.” (9)

Some Excellent Advice about Writing Abstracts for Basic Science Research Papers, by Professor Adriano Aguzzi from the Institute of Neuropathology at the University of Zurich:

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How to Write a Scientific Abstract for Your Research Article | Parts of a Research Article

How-to-write-a-scientific-abstract.

Karen McKee, Scientist

January 21, 2022

One of the most important parts of a scientific research article is the abstract. Why? Because they act like advertisements for your paper. Successful authors put substantial effort into crafting their abstracts as it is often the only section of a paper that is read! And will determine whether a reader decides to continue. In the case of a conference paper, the abstract will determine whether it is accepted or not for presentation to colleagues. Conference organizers and journal editors and reviewers pay close attention to the abstract because it is a good predictor of the quality of the paper or talk. A poorly written abstract says the author is inexperienced or doesn’t care about quality.

What is the purpose of a scientific abstract?

Essentially, an abstract should reflect all the parts of your research paper, including yourself, but in shortened form. In other words, a person reading only your abstract should be able to:

• understand why you conducted the study
• how you conducted it
• what you found,
• and why your work is important.

In general, avoid the novice’s cut-and-paste approach when crafting your abstract and instead write a unique, standalone summary. Although inclusion of data is acceptable, report only those numbers that represent the most important information. Some authors include citations or URLs in their abstracts, but many journals discourage or prohibit such additions. Be sure to stay within the word limit, which most journals and conferences set for abstracts. Use Wiley Author Services to find the best journal for publication of your paper and understand their submission process for more details.  

Let’s now consider how to write an abstract. Some journals or conferences provide a template that specifies four or five sections, e.g., Background or Aim, Question, Methods, Results, and Conclusions. If so, then follow those instructions. If not, then the four-part structure provided below will serve as a basic guideline. If you follow this formula, your abstract will be well organized and will contain all the essential elements. There are four main parts in which you need to answer the following questions:

How to Write an Abstract

1. what problem did you study and why is it important.

Here, you want to provide some background to the study, the motivation behind the study, and/or the specific question or hypothesis you addressed. You may be able to set the stage with only one or two sentences, but sometimes it takes a longer description. You’ll have to use your best judgment here as to how much to say in this first section.

2. What methods did you use to study the problem?

Next, you want to give an overview of your methods. Was it a field study or a laboratory experiment? What experimental treatments were applied? Generally, you want to keep the methods section brief unless it is the focus of the paper.

3. What were your key findings?

When describing your results, strive to focus on the main finding(s) and list no more than two or three points. Also, avoid ambiguous or imprecise wording, which is a common mistake found in conference abstracts written before the data have been completely collected or analyzed. If your data are incomplete or still being analyzed, you are not ready to present your paper.

4. What did you conclude based on these findings and what are the broader implications?

The conclusions section is where you want to drive home the broader implications of your study. What is new or innovative about the findings? How do your findings affect the field of study? Are there any applications? In writing this section, however, don’t state sweeping generalizations unsupported by the data or say that insights “will be discussed”.

What other considerations should I take when writing my abstract?

Search Engine Optimization (SEO), which means including keywords people are likely to use when looking for papers on your topic . In addition to including such terms in the title and keyword field of your paper, you want to repeat those terms contextually throughout the abstract. Such repetition is used by search engines to rank an online document. By optimizing your abstract for discovery by search engines, you can raise the ranking of your paper in a search and make it easier for colleagues to find.

Some journals are now encouraging or requiring “enhanced abstracts” such as  graphical abstracts  or  video abstracts . Although such abstracts include additional visual components, the same basic guidelines I’ve covered in this post still apply. All good abstracts recapitulate the paper and contain the four key parts listed above.

Writing good abstracts is not an art, but a learned skill. Developing such a skill takes practice. Here is an exercise to help you develop this skill. Pick a scientific article in your field. Read the paper with the abstract covered. Then try to write an abstract based on your reading. Compare your abstract to the author’s. Repeat until you feel confident. If you’ve not yet published a paper, this exercise will help you hone the skills necessary to write a concise and informative abstract.

If you would like to view a presentation that summarizes the points in this post and uses a published abstract to illustrate, see  this link.

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• How to Write an Abstract | Steps & Examples

How to Write an Abstract | Steps & Examples

Published on February 28, 2019 by Shona McCombes . Revised on July 18, 2023 by Eoghan Ryan.

An abstract is a short summary of a longer work (such as a thesis ,  dissertation or research paper ). The abstract concisely reports the aims and outcomes of your research, so that readers know exactly what your paper is about.

Although the structure may vary slightly depending on your discipline, your abstract should describe the purpose of your work, the methods you’ve used, and the conclusions you’ve drawn.

One common way to structure your abstract is to use the IMRaD structure. This stands for:

• Introduction

Abstracts are usually around 100–300 words, but there’s often a strict word limit, so make sure to check the relevant requirements.

In a dissertation or thesis , include the abstract on a separate page, after the title page and acknowledgements but before the table of contents .

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Table of contents

Abstract example, when to write an abstract, step 1: introduction, step 2: methods, step 3: results, step 4: discussion, tips for writing an abstract, other interesting articles, frequently asked questions about abstracts.

Hover over the different parts of the abstract to see how it is constructed.

This paper examines the role of silent movies as a mode of shared experience in the US during the early twentieth century. At this time, high immigration rates resulted in a significant percentage of non-English-speaking citizens. These immigrants faced numerous economic and social obstacles, including exclusion from public entertainment and modes of discourse (newspapers, theater, radio).

Incorporating evidence from reviews, personal correspondence, and diaries, this study demonstrates that silent films were an affordable and inclusive source of entertainment. It argues for the accessible economic and representational nature of early cinema. These concerns are particularly evident in the low price of admission and in the democratic nature of the actors’ exaggerated gestures, which allowed the plots and action to be easily grasped by a diverse audience despite language barriers.

Keywords: silent movies, immigration, public discourse, entertainment, early cinema, language barriers.

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You will almost always have to include an abstract when:

• Completing a thesis or dissertation
• Submitting a research paper to an academic journal
• Writing a book or research proposal
• Applying for research grants

It’s easiest to write your abstract last, right before the proofreading stage, because it’s a summary of the work you’ve already done. Your abstract should:

• Be a self-contained text, not an excerpt from your paper
• Be fully understandable on its own
• Reflect the structure of your larger work

Start by clearly defining the purpose of your research. What practical or theoretical problem does the research respond to, or what research question did you aim to answer?

You can include some brief context on the social or academic relevance of your dissertation topic , but don’t go into detailed background information. If your abstract uses specialized terms that would be unfamiliar to the average academic reader or that have various different meanings, give a concise definition.

After identifying the problem, state the objective of your research. Use verbs like “investigate,” “test,” “analyze,” or “evaluate” to describe exactly what you set out to do.

This part of the abstract can be written in the present or past simple tense  but should never refer to the future, as the research is already complete.

• This study will investigate the relationship between coffee consumption and productivity.
• This study investigates the relationship between coffee consumption and productivity.

Next, indicate the research methods that you used to answer your question. This part should be a straightforward description of what you did in one or two sentences. It is usually written in the past simple tense, as it refers to completed actions.

• Structured interviews will be conducted with 25 participants.
• Structured interviews were conducted with 25 participants.

Don’t evaluate validity or obstacles here — the goal is not to give an account of the methodology’s strengths and weaknesses, but to give the reader a quick insight into the overall approach and procedures you used.

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Next, summarize the main research results . This part of the abstract can be in the present or past simple tense.

• Our analysis has shown a strong correlation between coffee consumption and productivity.
• Our analysis shows a strong correlation between coffee consumption and productivity.
• Our analysis showed a strong correlation between coffee consumption and productivity.

Depending on how long and complex your research is, you may not be able to include all results here. Try to highlight only the most important findings that will allow the reader to understand your conclusions.

Finally, you should discuss the main conclusions of your research : what is your answer to the problem or question? The reader should finish with a clear understanding of the central point that your research has proved or argued. Conclusions are usually written in the present simple tense.

• We concluded that coffee consumption increases productivity.
• We conclude that coffee consumption increases productivity.

If there are important limitations to your research (for example, related to your sample size or methods), you should mention them briefly in the abstract. This allows the reader to accurately assess the credibility and generalizability of your research.

If your aim was to solve a practical problem, your discussion might include recommendations for implementation. If relevant, you can briefly make suggestions for further research.

If your paper will be published, you might have to add a list of keywords at the end of the abstract. These keywords should reference the most important elements of the research to help potential readers find your paper during their own literature searches.

Be aware that some publication manuals, such as APA Style , have specific formatting requirements for these keywords.

It can be a real challenge to condense your whole work into just a couple of hundred words, but the abstract will be the first (and sometimes only) part that people read, so it’s important to get it right. These strategies can help you get started.

Read other abstracts

The best way to learn the conventions of writing an abstract in your discipline is to read other people’s. You probably already read lots of journal article abstracts while conducting your literature review —try using them as a framework for structure and style.

You can also find lots of dissertation abstract examples in thesis and dissertation databases .

Reverse outline

Not all abstracts will contain precisely the same elements. For longer works, you can write your abstract through a process of reverse outlining.

For each chapter or section, list keywords and draft one to two sentences that summarize the central point or argument. This will give you a framework of your abstract’s structure. Next, revise the sentences to make connections and show how the argument develops.

Write clearly and concisely

A good abstract is short but impactful, so make sure every word counts. Each sentence should clearly communicate one main point.

To keep your abstract or summary short and clear:

• Avoid passive sentences: Passive constructions are often unnecessarily long. You can easily make them shorter and clearer by using the active voice.
• Avoid long sentences: Substitute longer expressions for concise expressions or single words (e.g., “In order to” for “To”).
• Avoid obscure jargon: The abstract should be understandable to readers who are not familiar with your topic.
• Avoid repetition and filler words: Replace nouns with pronouns when possible and eliminate unnecessary words.
• Avoid detailed descriptions: An abstract is not expected to provide detailed definitions, background information, or discussions of other scholars’ work. Instead, include this information in the body of your thesis or paper.

If you’re struggling to edit down to the required length, you can get help from expert editors with Scribbr’s professional proofreading services or use the paraphrasing tool .

Check your formatting

If you are writing a thesis or dissertation or submitting to a journal, there are often specific formatting requirements for the abstract—make sure to check the guidelines and format your work correctly. For APA research papers you can follow the APA abstract format .

Checklist: Abstract

The word count is within the required length, or a maximum of one page.

The abstract appears after the title page and acknowledgements and before the table of contents .

I have clearly stated my research problem and objectives.

I have briefly described my methodology .

I have summarized the most important results .

I have stated my main conclusions .

I have mentioned any important limitations and recommendations.

The abstract can be understood by someone without prior knowledge of the topic.

You've written a great abstract! Use the other checklists to continue improving your thesis or dissertation.

If you want to know more about AI for academic writing, AI tools, or research bias, make sure to check out some of our other articles with explanations and examples or go directly to our tools!

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An abstract is a concise summary of an academic text (such as a journal article or dissertation ). It serves two main purposes:

• To help potential readers determine the relevance of your paper for their own research.
• To communicate your key findings to those who don’t have time to read the whole paper.

Abstracts are often indexed along with keywords on academic databases, so they make your work more easily findable. Since the abstract is the first thing any reader sees, it’s important that it clearly and accurately summarizes the contents of your paper.

An abstract for a thesis or dissertation is usually around 200–300 words. There’s often a strict word limit, so make sure to check your university’s requirements.

The abstract is the very last thing you write. You should only write it after your research is complete, so that you can accurately summarize the entirety of your thesis , dissertation or research paper .

Avoid citing sources in your abstract . There are two reasons for this:

• The abstract should focus on your original research, not on the work of others.
• The abstract should be self-contained and fully understandable without reference to other sources.

There are some circumstances where you might need to mention other sources in an abstract: for example, if your research responds directly to another study or focuses on the work of a single theorist. In general, though, don’t include citations unless absolutely necessary.

The abstract appears on its own page in the thesis or dissertation , after the title page and acknowledgements but before the table of contents .

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How to Write a Scientific Abstract

Suhasini nagda.

Nair Hospital Dental College, Mumbai, India

Scientific publications are an important source of information and knowledge in Academics, Research and development. When articles are submitted for publication, the 1st part that comes across and causes an impact on the minds of the readers is the abstract. It is a concise summary of the paper and must convey the right message. It is a quick overview of the entire paper and giving a gist of the paper and also gives us and insight into whether the paper fulfills the expectations of the reader.

Abstracts are significant parts of academic assignments and research papers. The abstract is written at the end and by this time, the author has a clear picture regarding the findings and conclusions and hence the right message can be put forward.

Types of Scientific Abstracts [ 1 ]

• Descriptive
• Informative
• Semi-structured
• Non structured

Descriptive Abstracts

This type of abstract is usually very short (50–100 words). Most descriptive abstracts have certain key parts in common. They are:

□ Background

□ Purpose

□ Particular interest/focus of paper

□ Overview of contents (not always included)

These abstracts are inconvenient in that, by not including a detailed presentation of the results, it is necessary to have access to the complete article ; they may present the results via a phrase synthesizing them, without contributing numerical or statistical data. Ultimately, these guide readers on the nature of the contents of the article, but it is necessary to read the whole manuscript to know further details [ 1 ].

Informative Abstracts

From these abstracts, you must get the essence of what your report is about, usually in about 200 words. Most informative abstracts also have key parts in common. Each of these parts might consist of 1–2 sentences. The parts include:

□ Aim or purpose of research

□ Method used

□ Findings/results

□ Conclusion

The abstracts provide accurate data on the contents of the work, especially on the results section. Informative abstracts are short scientific productions, since they follow the IMRaD structure [ 2 ] and can in fact replace the whole text, because readers extract from these the most valuable information and in many instances it is not necessary to read the complete text.

Recommendations by the CONSORT [ 3 ] declaration, in its adaptation for abstracts, offer a guide for the elaboration of an abstract of a clinical trial in structured and informative manner, using up to 400 words and briefly including the Title, Methods (participants, interventions, objective, outcomes, randomization, blind tests), Results (number of randomizations, recruitment, number of analyses, outcome, important adverse effects), and Conclusions, registry of the clinical trial and conflict of interests.

Structured Abstracts

A structured abstract has a paragraph for each section: Introduction, Materials and Methods, Results, and Conclusion (it may even include paragraphs for the objectives or other sections). This type of presentation is often required for informative abstracts. The CONSORT [ 3 ] declaration suggests the presentation of clinical trials with structured abstracts . Structuring an abstract permits its informative development

Semi-structured Abstract

A semi-structured abstract is written in only one paragraph, where each sentence corresponds to a section . All the sections of the article are present as in the structured abstract [ 1 ].

Non-structured Abstract

When the abstract does not present divisions between each section , and it may not even present any of them, it is a non-structured abstract. The sentences are included in a sole paragraph. This type of presentation is ideal for descriptive abstracts [ 1 ].

Key Steps to Plan Writing an Abstract [ 4 ]

• Introduction—what is the topic?
• Statement of purpose?
• Summarize why have other studies not tackled similar research questions?
• How has the research question been tackled?
• How was the research done?
• What is the key impact of the research?

Errors in the Creation of an Abstract [ 1 ]

• The abstract of an article should contribute to readers the most relevant aspects of each part of the whole manuscript, maintaining a balance between excessive detail and a vague contribution of information.
• The abstract should be written by adequately selecting the words and sentences to accomplish coherent, clear, and concise contents.
• A common defect is including adequate information like abbreviations, excessive acronyms, bibliographic references, or figures.
• The length of an abstract will be determined by the instructions to authors by each journal; an excessively lengthy abstract is the most frequent error.
• Sections should maintain coherence and order and that the conclusions must be substantiated by the results revealed and respond to the objectives proposed.
• Frequently, abstracts have poorly defined objectives, excessive numerical data and statistical results, and conclusions not based on results presented.

In short, a good abstract is one that:

• Is coherent and concise
• Covers all the essential academic elements of the full-length paper
• Contains no information not included in the paper;
• Is written in plain English and is understandable to a wider audience and discipline-specific audience;
• Uses passive structures in order to report on findings
• Uses the language of the original paper, in a more simplified form
• Usually does not include any referencing; and
• In publications such as journals, it is found at the beginning of the text, but in academic assignments, it is placed on a separate preliminary page.

A good abstract usually ensures a good article, but a bad abstract often points towards an undesirable article. Scientific abstracts are a challenge to write and for the success of our publications, careful and planned writing of the abstract is absolutely essential.

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Writing a scientific paper.

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What is an abstract?

What is a "good" abstract, techniques to write an abstract, "abstract checklist" from: how to write a good scientific paper. chris a. mack. spie. 2018..

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There are as many kinds as abstracts as there are types of research papers.  The classic abstract is usually a "Informative" abstract. This kind of abstract communicates compressed information and include the purpose, methods, and scope of the article. They are usually short (250 words or less) and allow the reader to decide whether they want to read the article.

The goal is to communicate:

• What was done?
• Why was it done?
• How was it done?
• What was found?
• What is the significance of the findings?
• Self contained. Uses 1 or more well developed paragraphs
• Uses introduction/body/conclusion structure
• Presents purpose, results, conclusions and recommendations in that order
• Adds no new information
• Is understandable to a wide audience
• Write the abstract last
• Reread the article looking specifically for the main parts: Purpose, methods, scope, results, conclusions, and recommendations
• Write a first rough draft without looking at the original article
• Edit your draft by correcting organization, improving transitions, dropping unnecessary information and words, and adding important information you left out

The abstract should be a concise (200 words or less), standalone summary of the paper, with 1–2 sentences on each of these topics:

• Background: What issues led to this work? What is the environment that makes this work interesting or important?
• Aim: What were the goals of this work? What gap is being filled?
• Approach: What went into trying to achieve the aims (e.g., experimental method, simulation approach, theoretical approach, combinations of these, etc.)? What was actually done?
• Results: What were the main results of the study (including numbers, if appropriate)?
• Conclusions: What were the main conclusions? Why are the results important? Where will they lead?

The abstract should be written for the audience of this journal: do not assume too much or too little background with the topic.

Ensure that all of the information found in the abstract also can be found in the body of the paper.

Ensure that the important information of the paper is found in the abstract.

Avoid: using the first paragraph of the introduction as an abstract; citations in the abstract; acronyms (but if used, spell them out); referring to figures or tables from the body of the paper; use of the first person; use of words like “new” or “novel,” or phrases like “in this paper,” “we report,” or “will be discussed.” 

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How to Write an Abstract for a Scientific Paper

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• Ph.D., Biomedical Sciences, University of Tennessee at Knoxville
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If you're preparing a research paper or grant proposal, you'll need to know how to write an abstract. Here's a look at what an abstract is and how to write one.

An abstract is a concise summary of an experiment or research project. It should be brief -- typically under 200 words. The purpose of the abstract is to summarize the research paper by stating the purpose of the research, the experimental method, the findings, and the conclusions.

How to Write an Abstract

The format you'll use for the abstract depends on its purpose. If you're writing for a specific publication or a class assignment, you'll probably need to follow specific guidelines. If there isn't a required format, you'll need to choose from one of two possible types of abstracts.

Informational Abstracts

An informational abstract is a type of abstract used to communicate an experiment or lab report .

• An informational abstract is like a mini-paper. Its length ranges from a paragraph to 1 to 2 pages, depending on the scope of the report. Aim for less than 10% the length of the full report.
• Summarize all aspects of the report, including purpose, method, results, conclusions, and recommendations. There are no graphs, charts, tables, or images in an abstract. Similarly, an abstract does not include a bibliography or references.
• Highlight important discoveries or anomalies. It's okay if the experiment did not go as planned and necessary to state the outcome in the abstract.

Here is a good format to follow, in order, when writing an informational abstract. Each section is a sentence or two long:

• Motivation or Purpose: State why the subject is important or why anyone should care about the experiment and its results.
• Problem: State the hypothesis of the experiment or describe the problem you are trying to solve.
• Method: How did you test the hypothesis or try to solve the problem?
• Results: What was the outcome of the study? Did you support or reject a hypothesis? Did you solve a problem? How close were the results to what you expected? State-specific numbers.
• Conclusions: What is the significance of your findings? Do the results lead to an increase in knowledge, a solution that may be applied to other problems, etc.?

Need examples? The abstracts at PubMed.gov (National Institutes of Health database) are informational abstracts. A random example is this abstract on the effect of coffee consumption on Acute Coronary Syndrome .

Descriptive Abstracts

A descriptive abstract is an extremely brief description of the contents of a report. Its purpose is to tell the reader what to expect from the full paper.

• A descriptive abstract is very short, typically less than 100 words.
• Tells the reader what the report contains, but doesn't go into detail.
• It briefly summarizes the purpose and experimental method, but not the results or conclusions. Basically, say why and how the study was made, but don't go into findings. 

Tips for Writing a Good Abstract

• Write the paper before writing the abstract. You might be tempted to start with the abstract since it comes between the title page and the paper, but it's much easier to summarize a paper or report after it has been completed.
• Write in the third person. Replace phrases like "I found" or "we examined" with phrases like "it was determined" or "this paper provides" or "the investigators found".
• Write the abstract and then pare it down to meet the word limit. In some cases, a long abstract will result in automatic rejection for publication or a grade!
• Think of keywords and phrases a person looking for your work might use or enter into a search engine. Include those words in your abstract. Even if the paper won't be published, this is a good habit to develop.
• All information in the abstract must be covered in the body of the paper. Don't put a fact in the abstract that isn't described in the report.
• Proof-read the abstract for typos, spelling mistakes, and punctuation errors.
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Getting a paper out there is great. Getting the words on the paper can be painful. Here is an easy manual for how to write an abstract that requires minimal effort.

The purpose of an abstract is to spark the reader’s interest in the story and motivate them to continue reading the whole paper. It might be obvious, but it is worth pointing out that people only cite your work if they have read it. A compelling writing style is a first step in that direction because a well-written paper is more likely to have a large readership.

Consider an abstract a 5-part structure consisting of 1) introduction, 2) problem/objective, 3) “Here we show”, 4) main results & conclusions, and 5) implications.

1) Introduction (2 sentences):

    --> Sentence 1: Basic introduction to the field; accessible to scientists of any  discipline.

    --> Sentence 2: Background of the specific research question; comprehensible to scientists in the same or closely related fields of research.

2) Problem/objective (1 sentence):

    --> Explanation what is missing/unknown/problematic, i.e. why the current study happened. Typically, this sentence starts with “However”.

3) “Here we show” (1 sentence):

    --> The main result/key finding summarised in one sentence, which starts with “Here we show”.

4) Main results and conclusions (~ 3 – 5 sentences)

    --> Summary of the most important findings of the study that are the foundation of the main conclusions. A few key bits of data are welcome but adding too many numbers is off-putting to the reader. Keep it focussed.

    --> Unless the method is new and/or a main part of the paper, there’s no need to include any details in the abstract. If you mentioned, it should be included in a sentence along the lines of “Using xyz, we show that (…)”.

5) Implications (1 – 2 sentences)

    --> Some explanation on how your findings advance the field. Where does your work lead and what are the immediate implications? The word “immediate” is key here because being too creative or hyping the work are pitfalls that should be avoided. Rather, keep it realistic and explain which opportunities your work offer and/or what it leads to.

If you hit the five marks above in exactly this order, your abstract is likely to tell a compelling story. Of course, there are also some journal-specific formatting requirements for your abstract. For instance, for Nature Communications those are: 150 words max., no references or unnecessary abbreviations/acronyms, and the results should be presented in the present tense.

The target audience

One last piece of advice: When writing the abstract and, in fact, your whole paper, consider your ultimate audience, which are active scientists not editors. Getting published is only the first step. Eventually, your paper is supposed to attract as many readers as possible so it gets the exposure and attention it deserves.

Further writing advice and courses

Of course, there is much more to writing a compelling paper, and I might write further posts on this matter. For those who would like to boost their skills in scientific writing and better understand how to navigate the publishing system, Springer Nature offers Nature Masterclasses which include face-to-face workshops , webinars , and online training courses (free sample here and free online course “Focus on Peer Review” here ).

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How to write an abstract that stands out

A well-written abstract helps to attract readership.

Credit: vladwel/Getty Images

10 August 2021

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The brevity of an abstract belies its importance to a manuscript. It’s what catches a reader’s attention and helps them to decide whether a paper is relevant. Yet failing to reflect the content of the paper in the abstract was singled out as the most common error in a recently published study of problems in biomedical manuscripts.

Nature Index spoke to researchers to get their suggestions for how to make abstracts eye-catching as well as accurate.

Carolina Quezada: Get writing practice as early as you can

Postdoctoral Fellow, Universidad Bernardo O’Higgins (Chile) and member of the eLife Early Career Advisory Group

A well-written abstract should highlight clearly and in an engaging way what is most special about the research findings to its potential audience. An excellent abstract should be interesting and accessible to all potential readers including non-experts.

Carolina Quezada

It is important for scientists to get practice writing abstracts as early as possible and seek out formal training opportunities within their schools and professional networks. Even if one writes well in technical and academic language, it does not necessarily make one able to communicate science properly to non-experts, and this skill is becoming more valued.

Regarding that, journals have started introducing ‘layman abstracts’, which are written for the public and researchers who are new to the field. I find them particularly useful because more people can better appreciate the value of the research.

At the eLife Early Career Advisory Group, we have also led efforts to involve more early-career researchers in editing and peer reviews, and I hope more journals can consider having similar initiatives. When researchers are able to get more experience reading, comparing and evaluating abstracts, they can also develop into better writers, and that benefits the entire scientific community.

Simone Schürle-Finke: Don’t overhype your research; know the purpose of your abstract

Group Head, Swiss Federal Institute of Technology Zurich (Switzerland)

An abstract helps to draw attention to a manuscript and there may be pressure to overhype the findings. A good abstract should avoid that; one way to do so is to be quantitative. In my papers , I like to make use of numbers to state findings or compare my technology with state-of-the-art techniques.

Simone Schürle-Finke

I also find it most helpful to write an abstract after the main body of a manuscript is written. At this stage of paper writing, I am very familiar with the narrative and data and will be able to take a step back to look at the big picture. This can help me summarise key findings of my paper and their limitations so I can communicate them in the abstract accurately.

Researchers write abstracts for many purposes and it is important to differentiate them as they can differ in their emphasis. When I write a paper abstract, there is greater focus on the findings. On the other hand, for a grant abstract, when the purpose is to get funding, the emphasis is on specific aims and potential implications of the project. A well-written abstract needs to be able to capture the essence of its purpose.

Esra Senol: Seek advice from peers and learn from published work

PhD student, National University of Singapore

A challenge I face while writing abstracts is not knowing how much background to include. Some journals provide specific information such as how many lines for background introduction in abstract, but most don’t. To overcome this challenge, I try to get feedback from my inner circle, such as colleagues in the same field and peers who are outside my field.

I find suggestions from non-expert scientists helpful because as experts of a field, I may have technical blind spots. Editors who decide whether to send papers out for peer review may not be experts in my field. Getting advice from non-expert researchers has enabled me to better communicate the value of my research through abstracts.

Researchers can face difficulties writing in English especially when it is not their first language. Although my scientific training is in English, I realise that I may not always express myself as well as native writers. To improve my abstract writing skills, I would read many top, highly-cited papers in my field and also learn from published work in the journals I am targeting to submit to.

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