Laboratory medicine is an important subject in medical education. According to the principles of student-based teaching, an evaluation of the students' perception towards the taught subjects is important. A questionnaire survey was performed on all 2nd year medical students who passed the course "Basic Pathology" of the Department of Laboratory Medicine, Faculty of Medicine, Chulalongkorn University. All subjects were asked to grade (score 1-5) the 11 topics in laboratory medicine according to their perceptions or expectations for future usage. The average score for all topics was 3.92 ฑ 0.62. The average score given by male and female subjects was not significantly different (P > 0.05).