<unk>  is a medical condition characterized by insufficient androgenic activity in the body. Androgenic activity is mediated by androgens (a class of steroid hormones with varying affinities for the androgen receptor), and is dependent on various factors including androgen receptor abundance, sensitivity and function.
Androgen deficiency
Congenital estrogen deficiency
Androgen insufficiency syndrome
Aromatase excess syndrome
Hyperandrogenism
Estrogen insensitivity syndrome
Anabolic-androgenic steroids abuse
Aromatase deficiency