Background: Students attrition in Medical schools is a major concern, attrition rates are one of the important indicators being used by the accrediting bodies to measure the medical schools' performance. Having understood the gravity of this issue, medical schools are paying great attention to curb the attrition rate. This review aims to understand the various reasons identified by worldwide medical schools for the attrition of students. The reasons identified by different medical schools and the attrition rate, detailed in this study will be of great value to the medical school administrators to address the attrition in their respective medical schools. Methods: Based on the determined eligibility criteria, six electronic databases were searched in the year 2018 for relevant articles. Nine relevant articles were chosen for the study, the articles where chosen based on the experience of different medical schools from different countries, which include the