At about 7 days 7 in utero, the sex-related gene about the Y chromosome initiates the event in the testicles in male infants. The testicles produce testosterone. Ovarian or testicular tumors: Androgen-making ovarian and testicular tumors can launch surplus testosterone. 层次（鞘膜 · 白膜 · 血管膜） · 附件 · 纵隔 https://hectornprrr.elbloglibre.com/28929545/nexalin-secrets