Writing A Scientific Introduction For Essay


An article primarily includes the following sections: introduction, materials and methods, results, discussion, and conclusion. Before writing the introduction, the main steps, the heading and the familiarity level of the readers should be considered. Writing should begin when the experimental system and the equipment are available. The introduction section comprises the first portion of the manuscript, and it should be written using the simple present tense. Additionally, abbreviations and explanations are included in this section. The main goal of the introduction is to convey basic information to the readers without obligating them to investigate previous publications and to provide clues as to the results of the present study. To do this, the subject of the article should be thoroughly reviewed, and the aim of the study should be clearly stated immediately after discussing the basic references. In this review, we aim to convey the principles of writing the introduction section of a manuscript to residents and young investigators who have just begun to write a manuscript.

Keywords: Article, introduction, scientific


When entering a gate of a magnificent city we can make a prediction about the splendor, pomposity, history, and civilization we will encounter in the city. Occasionally, gates do not give even a glimpse of the city, and it can mislead the visitors about inner sections of the city. Introduction sections of the articles are like gates of a city. It is a presentation aiming at introducing itself to the readers, and attracting their attention. Attractiveness, clarity, piquancy, and analytical capacity of the presentation will urge the reader to read the subsequent sections of the article. On the other hand as is understood from the motto of antique Greek poet Euripides “a bad beginning makes a bad ending”, ‘Introduction’ section of a scientific article is important in that it can reveal the conclusion of the article.[1]

It is useful to analyze the issues to be considered in the ‘Introduction’ section under 3 headings. Firstly, information should be provided about the general topic of the article in the light of the current literature which paves the way for the disclosure of the objective of the manuscript. Then the specific subject matter, and the issue to be focused on should be dealt with, the problem should be brought forth, and fundamental references related to the topic should be discussed. Finally, our recommendations for solution should be described, in other words our aim should be communicated. When these steps are followed in that order, the reader can track the problem, and its solution from his/her own perspective under the light of current literature. Otherwise, even a perfect study presented in a non-systematized, confused design will lose the chance of reading. Indeed inadequate information, inability to clarify the problem, and sometimes concealing the solution will keep the reader who has a desire to attain new information away from reading the manuscript.[1–3]

First of all, explanation of the topic in the light of the current literature should be made in clear, and precise terms as if the reader is completely ignorant of the subject. In this section, establishment of a warm rapport between the reader, and the manuscript is aimed. Since frantic plunging into the problem or the solution will push the reader into the dilemma of either screening the literature about the subject matter or refraining from reading the article. Updated, and robust information should be presented in the ‘Introduction’ section.

Then main topic of our manuscript, and the encountered problem should be analyzed in the light of the current literature following a short instance of brain exercise. At this point the problems should be reduced to one issue as far as possible. Of course, there might be more than one problem, however this new issue, and its solution should be the subject matter of another article. Problems should be expressed clearly. If targets are more numerous, and complex, solutions will be more than one, and confusing.

Finally, the last paragraphs of the ‘Introduction’ section should include the solution in which we will describe the information we generated, and related data. Our sentences which arouse curiosity in the readers should not be left unanswered. The reader who thinks to obtain the most effective information in no time while reading a scientific article should not be smothered with mysterious sentences, and word plays, and the readers should not be left alone to arrive at a conclusion by themselves. If we have contrary expectations, then we might write an article which won’t have any reader. A clearly expressed or recommended solutions to an explicitly revealed problem is also very important for the integrity of the ‘Introduction’ section.[1–5]

We can summarize our arguments with the following example (Figure 1). The introduction section of the exemplary article is written in simple present tense which includes abbreviations, acronyms, and their explanations. Based on our statements above we can divide the introduction section into 3 parts. In the first paragraph, miniaturization, and evolvement of pediatric endourological instruments, and competitions among PNL, ESWL, and URS in the treatment of urinary system stone disease are described, in other words the background is prepared. In the second paragraph, a newly defined system which facilitates intrarenal access in PNL procedure has been described. Besides basic references related to the subject matter have been given, and their outcomes have been indicated. In other words, fundamental references concerning main subject have been discussed. In the last paragraph the aim of the researchers to investigate the outcomes, and safety of the application of this new method in the light of current information has been indicated.

Figure 1.

An exemplary introduction section of an article

Apart from the abovementioned information about the introduction section of a scientific article we will summarize a few major issues in brief headings

Important points which one should take heed of:

  1. Abbreviations should be given following their explanations in the ‘Introduction’ section (their explanations in the summary does not count)

  2. Simple present tense should be used.

  3. References should be selected from updated publication with a higher impact factor, and prestigous source books.

  4. Avoid mysterious, and confounding expressions, construct clear sentences aiming at problematic issues, and their solutions.

  5. The sentences should be attractive, tempting, and comjprehensible.

  6. Firstly general, then subject-specific information should be given. Finally our aim should be clearly explained.


1. Day RA. In: How to Write and Publish a Scientific Paper. 4. Edition. Altay Gülay Aşkar., translator. Tübitak Yayınları; 2000.

2. Hengl T, Gould M. Enschede. Sep, 2002. Rules of thumb for writing research articles.

3. Day AD. How to write a scientific paper. IEEE transactions on professional communication; 1977. pp. 32–7.

4. DeMaria AN. How do I get a paper accepted? J Am Coll Cardiol. 2007;49:1666–7.[PubMed]

5. Vernon Booth: Writing a scientific paper. Biochem Soc. 1975;3:1–26.[PubMed]

Introductions and conclusions play a special role in the academic essay, and they frequently demand much of your attention as a writer. A good introduction should identify your topic, provide essential context, and indicate your particular focus in the essay. It also needs to engage your readers’ interest. A strong conclusion will provide a sense of closure to the essay while again placing your concepts in a somewhat wider context. It will also, in some instances, add a stimulus to further thought. Since no two essays are the same, no single formula will automatically generate an introduction and conclusion for you. But the following guidelines will help you to construct a suitable beginning and end for your essay.

Some general advice about introductions

  1. Some students cannot begin writing the body of the essay until they feel they have the perfect introduction. Be aware of the dangers of sinking too much time into the introduction. Some of that time can be more usefully channeled into planning and writing.
  2. You may be the kind of writer who writes an introduction first in order to explore your own thinking on the topic. If so, remember that you may at a later stage need to compress your introduction.
  3. It can be fine to leave the writing of the introduction for a later stage in the essay-writing process. Some people write their introduction only after they have completed the rest of the essay. Others write the introduction first but rewrite it significantly in light of what they end up saying in the body of their paper.
  4. The introductions for most papers can be effectively written in one paragraph occupying half to three-quarters of the first page. Your introduction may be longer than that, and it may take more than one paragraph, but be sure you know why. The size of your introduction should bear some relationship to the length and complexity of your paper. A twenty page paper may call for a two-page introduction, but a five-page paper will not.
  5. Get to the point as soon as possible. Generally, you want to raise your topic in your very first sentences. A common error is to begin too broadly or too far off topic. Avoid sweeping generalizations.
  6. If your essay has a thesis, your thesis statement will typically appear at the end of your introduction, even though that is not a hard-and-fast rule. You may, for example, follow your thesis with a brief road map to your essay that sketches the basic structure of your argument. The longer the paper, the more useful a road map becomes.

How do I write an interesting, effective introduction?

Consider these strategies for capturing your readers’ attention and for fleshing out your introduction:

  1. Find a startling statistic that illustrates the seriousness of the problem you will address.
  2. Quote an expert (but be sure to introduce him or her first).
  3. Mention a common misperception that your thesis will argue against.
  4. Give some background information necessary for understanding the essay.
  5. Use a brief narrative or anecdote that exemplifies your reason for choosing the topic. In an assignment that encourages personal reflection, you may draw on your own experiences; in a research essay, the narrative may illustrate a common real-world scenario.
  6. In a science paper, explain key scientific concepts and refer to relevant literature. Lead up to your own contribution or intervention.
  7. In a more technical paper, define a term that is possibly unfamiliar to your audience but is central to understanding the essay.

In fleshing out your introduction, you will want to avoid some common pitfalls:

  1. Don’t provide dictionary definitions, especially of words your audience already knows.
  2. Don’t repeat the assignment specifications using the professor’s wording.
  3. Don’t give details and in-depth explanations that really belong in your body paragraphs. You can usually postpone background material to the body of the essay.

Some general advice about conclusions

  1. A conclusion is not merely a summary of your points or a re-statement of your thesis. If you wish to summarize—and often you must—do so in fresh language. Remind the reader of how the evidence you’ve presented has contributed to your thesis.
  2. The conclusion, like much of the rest of the paper, involves critical thinking. Reflect upon the significance of what you’ve written. Try to convey some closing thoughts about the larger implications of your argument.
  3. Broaden your focus a bit at the end of the essay. A good last sentence leaves your reader with something to think about, a concept in some way illuminated by what you’ve written in the paper.
  4. For most essays, one well-developed paragraph is sufficient for a conclusion. In some cases, a two-or-three paragraph conclusion may be appropriate. As with introductions, the length of the conclusion should reflect the length of the essay.

How do I write an interesting, effective conclusion?

The following strategies may help you move beyond merely summarizing the key points of your essay:

  1. If your essay deals with a contemporary problem, warn readers of the possible consequences of not attending to the problem.
  2. Recommend a specific course of action.
  3. Use an apt quotation or expert opinion to lend authority to the conclusion you have reached.
  4. Give a startling statistic, fact, or visual image to drive home the ultimate point of your paper.
  5. If your discipline encourages personal reflection, illustrate your concluding point with a relevant narrative drawn from your own life experiences.
  6. Return to an anecdote, example, or quotation that you introduced in your introduction, but add further insight that derives from the body of your essay.
  7. In a science or social science paper, mention worthwhile avenues for future research on your topic.

How does genre affect my introduction or conclusion?

Most of the advice in this handout pertains to argumentative or exploratory academic essays. Be aware, however, that different genres have their own special expectations about beginnings and endings. Some academic genres may not even require an introduction or conclusion. An annotated bibliography, for example, typically provides neither. A book review may begin with a summary of the book and conclude with an overall assessment of it. A policy briefing usually includes an introduction but may conclude with a series of recommendations. Check your assignment carefully for any directions about what to include in your introduction or conclusion.

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