Follicle-stimulating hormone, decreased
Less common causes
Sertoli-cell-only syndrome
Congenital adrenal hyperplasia
47/XXX aneuploidy
Klinefelter syndrome
Cryptorchidism
Turner syndrome
Myotonic dystrophy
Testicular torsion
Idiopathic premature ovarian failure
Incomplete androgen insensitivity
Uncommon causes
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Pharmacological causes
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