Objectives: Breast cancer is the most frequent malignancy in both Turkey and the World. Breast self-examination (BSE) is the cheapest and the easiest method for early detection. According to Turkey's Ministry of Health, 65.1 percent of women have never performed BSE. Only 10.1 percent of women perform BSE monthly. The purpose of this study was to examine health beliefs, behaviour and determining factors in BSE among a group of university students.