Differential diagnosis | Diagnostic test |
---|---|
Premature ovarian insufficiency or early menopause | FSH, estradiol |
Hyperprolactinemia | Serum prolactin |
Pregnancy | β-hCG |
Hypo- or hyperthyroidism | TSH |
Polycystic ovary syndrome | Clinical diagnosis (i.e., Rotterdam criteria), with or without total serum testosterone |
Note: FSH = follicle-stimulating hormone, hCG = human chorionic gonadotropin, TSH = thyroid-stimulating hormone.