Small penis and the male sexual role.

We interviewed and examined 20 patients with the primary diagnosis of micropenis in infancy. The patients were divided into 2 groups: 8 prepubertal (10 to 13 years old) and 12 postpubertal (17 to 43 years old). All but 1 had been given human chorionic gonadotropin, testosterone or cortisone during childhood. Only 1 child in the prepubertal group had a stretched penile length above the 10th percentile. All postpubertal patients were below the 10th percentile. Puberty was delayed in only 2 patients in the older group. All patients were heterosexual and they had erections and orgasms. Eleven patients had ejaculations, 9 were sexually active and reported vaginal penetration, 7 were married or cohabiting and 1 had fathered a child.