Male victims of child sexual abuse have received inadequate attention in the literature. This article is a retrospective review of the reports of 189 boys evaluated during 1983-85. This population was younger than those previously reported. Comparison to an age- and race-matched group of girl victims seen during the same period revealed many similarities in patterns of disclosure and perpetrator characteristics. The acts perpetrated against the boys included a wide array of invasive acts at all ages, but sodomy was more frequently reported in the older victims. Abnormal anogenital findings were seen more often in younger children, but the findings were often nonspecific. An examiner experienced with young children and infants is essential.