Scientific articles published in science journals are the main means of communicating scientific information today. A scientific article as a type of publication is characterized by a specific design and content. It is defined as a special type of publication intended to convey scientific information. There are different types of scientific articles: original scientific article, review article, systematic review and meta-analysis, case report, etc. Original scientific article and how to write it is the main topic of this article. It is considered a primary scientific publication that brings research results that have not been published before and contains enough data for other researchers to assess the presented evidence, repeat the study, and critically assess the conclusions. Original scientific article usually follows the IMRaD structure, i.e., it consists of four main sections as follows: introduction, methods, results, and discussion. Each section has a different purpose and brings different part of information on the study that was conducted. Furthermore, other elements of a scientific article are presented and explained, such as a title, abstract, key words, and reference format. Hopefully useful suggestions are offered about the use of scientific language and style.