Reported cases of sexual assault in the United States increased 21% from 1974 to 1978. Recent literature discusses the medical, legal, and psychological management of the female sexual assault victim, but little has been written regarding appropriate management of male sexual assault. Twenty-nine male sexual assault victims were examined at University Hospital from 1976 to 1980. This study reviews evidence of genital and extragenital trauma and the percentage of those requiring gonorrhea prophylaxis. It further studies the background and characteristics of the sexual assault victim, characterization of the assailant, as well as the details and time of the assault. Information concerning male sexual assault and the unique problems associated with this group is scarce. This study is intended to aid in the development of an effective protocol in dealing with this group of patients and to sensitize physicians to this group of patients.