Prolactin

Lactogenic Hormone

Why It Is Done

A test for prolactin is done:

  • To find the cause of abnormal nipple discharge, or if a woman is not having periods (amenorrhea) or if a woman is having a hard time becoming pregnant (infertile).
  • In a man when a pituitary gland problem is suspected. Also, a prolactin test may be done to check levels if a man lacks sexual desire or if he has a hard time having an erection (erectile dysfunction). Prolactin levels may be checked when a man's testosterone levels are really low.
  • To see whether a tumor in the pituitary gland (called a prolactinoma) is making large amounts of prolactin.

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Author: Sandy Jocoy, RN Last Updated: July 15, 2008
Medical Review: Joy Melnikow, MD, MPH - Family Medicine
Deborah A. Penava, BA, MD, FRCSC, MPH - Obstetrics and Gynecology

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Topic Contents
 Test Overview
Arrow PointerWhy It Is Done
 How To Prepare
 How It Is Done
 How It Feels
 Risks
 Results
 What Affects the Test
 What To Think About
 References
 Credits