Testosterone deficiency during fetal development doesn’t allow male qualities to produce Typically. This is named androgen insensitivity syndrome (AIS) and occurs when anyone is genetically male but is insensitive to androgens (male sex hormones). 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] 維持性慾及勃起次數（濫用補充劑可能會導致疼痛性陰莖異常勃起... https://matas61605.pointblog.net/top-nexalin-male-enhancement-secrets-70212853