Twenty girls with labial fusion that covered at least 50% of the vaginal opening were treated with a topical estrogen cream. The cream was precisely applied to the fused area twice a day until the adhesions were totally lysed. After separation of the adhesions, a petroleum ointment (Vaseline) was applied twice a day to the labia minora for at least 1 month. The introital area was carefully rinsed twice each day before application of either the estrogen cream or the petroleum ointment. The mean age of the studied population was 13.2 months (range, 2 to 38 months). The mean duration of estrogen treatment was 2.4 months (range, 1 to 3.5 months). All patients were successfully treated. Five patients developed vulval pigmentation, which lasted for a mean of 1.5 months. One patient developed breast enlargement, which lasted for 1 month. The mean duration of follow-up was 3.1 months, and there was no recurrence of labial fusion during the period of follow-up. We conclude that treatment of labial fusion with topical estrogen therapy is safe and effective.

Melanonychia striata is uncommon in Chinese individuals, especially in those aged under 20 years. The male to female ratio is approximately equal. The thumbs are most frequently affected and the condition is often bilateral.

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