Baby boys who are exposed in the womb to a chemical used in soft plastics may show small signs of altered genital development, according to new research published today. Subscribe to read this story ...

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 ...

Tanner stages track five milestone physical changes during puberty for both boys and girls. Early puberty in females starts before age 8, and before age 9 in males. Delayed puberty is when girls don't ...

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.