FSH

Alternative names:

follicle stimulating hormone

Normal values:

male: 4 to 25 U/L
female:

• premenopausal: 4 to 30 U/L
• midcycle peak: 10 to 90 U/L
• pregnancy: low to undetectable
• postmenopausal: 40 to 250 U/L

Note: U/L = units per liter

What abnormal results mean:

Disorders that may be associated with abnormal FSH results include:

• hypopituitarism
• Klinefelter's syndrome
• polycystic ovary disease
• Turner's syndrome
• ovarian failure (ovarian hypofunction)

Additional conditions under which the test may be performed:

• anovulatory bleeding
• multiple endocrine neoplasia (MEN) I
• ovarian cysts