Nov 20, 2025 · A prolactin (PRL) blood test measures how much of a hormone called prolactin you have in your blood. The hormone is made in your pituitary gland, which is located just below your brain. …

Dec 30, 2024 · Prolactin makes lactation and breast tissue development possible. Your prolactin levels are elevated if you’re pregnant or breastfeeding. Abnormally high levels of prolactin can cause …

The prolactin test measures levels of the hormone prolactin in your blood. High levels in nonpregnant women and men may be a sign of a health problem.

Nov 29, 2023 · A prolactin level test looks for health conditions relating to the hormone prolactin. Results may indicate pituitary disorders, hypothyroidism, kidney disease, or liver disease.

Jan 10, 2024 · How is the test carried out? A prolactin test is just like a blood test. It takes a few minutes at your doctor’s office or in a lab. You don’t need to prepare for it.

It is primarily used to diagnose conditions affecting the pituitary gland, reproductive health, or other hormonal imbalances. This test is critical for: Diagnosing pituitary gland disorders, such as …

A prolactin test is a simple blood draw that measures the level of prolactin, a hormone produced mainly by the pituitary gland at the base of your brain.

Jan 13, 2026 · Prolactin is a hormone produced by the pituitary gland, a small gland located at the base of the brain. While it is primarily associated with milk production in breastfeeding women, it also plays …

Sep 25, 2025 · To see whether a tumor in the pituitary gland (called a prolactinoma) is making large amounts of prolactin. A blood prolactin test is usually done about 3 hours after you wake up, …

Dec 20, 2025 · What is a Prolactin Test? A prolactin test is a simple blood test that measures the amount of prolactin in your body. Doctors use this test to check whether prolactin levels are within …