This study examined the actual status of masturbation and its relationship to social activity, sexual stimuli, and means to avoid such practice. A total of 422 medical students in Damascus University, age distribution were (18-26 year).A questionnaire had been distributed involved questions related to the study. Questions divided in 4 subjects: the first is about the general sexual stimuli, the second is studying masturbation especially. The third is about risks of masturbation in general, fourthly is the risks somatic and affective of masturbation.