In adults assigned female at birth, significant amounts of testosterone may be a sign of polycystic ovary syndrome (PCOS). This situation is very common — up to 15% of people AFAB of reproductive age have it. 在青春期时，睾酮会令孩童出现第一种雄激素上升可见的现象。这些现象包括：[来源请求] The rise in testosterone during Level of competition predicted aggression in males, https://zanderosvyz.pointblog.net/michel-cymes-an-overview-70329503