Hyperandrogenism causes elevated levels of the sex hormone testosterone in a woman’s body, and that can lead to acne, increased muscle mass, deepening of the voice, hair loss from the scalp ...

The issue of hyperandrogenism in sports is controversial because it has pitted principles of fair competition against the rights of women born with a condition they have no control over.

A South African legal expert has resigned from the IAAF's disciplinary tribunal in protest at a new hyperandrogenism rule that could result in bans for some female athletes unless they undergo ...