Introduction: Obsessive-Compulsive Disorder is a highly-disabling mental illness that results in the suffering of many individuals around the world. In this article, the disorder is fully looked into: how it occurs, its pathophysiology, its treatment, and the suggested future advances in the management and study of this disorder. Research Methodology: A number of search engines (Google Scholar, PubMed, google.com, etc.) were searched with the aforementioned keywords. This resulted in a plethora of results. These were, in turn, filtered through the known criteria regarding their eligibility for usage in review articles. Some sources were inaccessible and were, ergo, excluded from being used here. Moreover, other results were found to be published in predatory journals. Duplicate findings were, of course, eliminated. Fol lowing this, the results were filtered based on their relevance to the topic of the article. The data included here was revised and found to be eligible for use and then, and only then, were they included in this article.