Proper development of the fetal penis requires not just testosterone from the testes, but a second hormone produced by other tissues, including the placenta, according to a new study publishing ...

Cosmetic genital procedures are becoming increasingly popular in women. The most common is labiaplasty, which involves the surgical reduction of the inner lips of the vulva—the labia minora. Most ...

The results not only shed light on a previously unknown “backdoor” pathway of masculinization, but could also explain the link between placental dysfunction and disorders of male genital development.

A new study suggests a simple letter change can reverse sex development, causing a mouse with female chromosomes (XX) to develop male genitalia. The mutation responsible for the change was not in ...