Cutaneous group B streptococcal infection.

A 20-year-old man had a penile ulceration from which a pure, heavy growth of group B streptococcus was cultured. Cutaneous infection with this organism is unusual, and it is most often reported in postpartum women, diabetic patients, and immunocompromised individuals. Vaginal colonization with group B streptococcus is common. Since traumatic erosions or ulcerations of the penis are not uncommon, it is likely that a certain number of unrecognized infections of this type occur.