생리적/특발성 원인	vs.	병적 원인
Neonatal/infancy Pubertal Middle or advanced age		약물 Primary testosterone deficiency (특히, Klinefelter syndrome) Secondary testosterone deficiency Hyperthyroidism Neoplasms Testicular: originating from germ (secreting forms), Leydig or Sertoli cells Adrenal: androgen- or estrogen-secreting tumors Ectopic production of hCG Hepatic causes, malnutrition Renal causes Rare causes Enzymatic defects of testosterone production Androgen insensitivity syndromes True hermaphroditism Excessive extra-glandular aromatase activity Environmental polluting substances

Omitted

유방비대/여성형 유방(Gynecomastia) 회원