Hi. Examinations in mbbs are an important part of medical student’s life. It all depends on the college you are in, whether it is compulsory or not to give exams. However, some students do miss their pre profs and other exams on a regular basis. I believe you should not miss any of the examinations, as they will help you build and clear your concepts and will enable you to know where you lack and where you stand in a batch of 150 or 200 students. Hope it helps!