Prolactin is a hormone released by the pituitary gland. The prolactin test measures the amount of prolactin in the blood.
Prolactin is usually measured when checking for pituitary tumors and the cause of:
Breast milk production that is not related to childbirth (galactorrhea)
Decreased sex drive (libido) in men and women, Impotence, Infertility, Irregular or no menstrual periods (amenorrhea.)
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- WHAT IT TESTS: Measures prolactin levels.
- WHY TAKE IT: Diagnose abnormal lactation.
- REQUIRES FAST? No.