Prolactin Blood Test
A Prolactin Blood Test is a common test used to measure the level of prolactin, which is a hormone produced by the pituitary gland that plays an important role in breast milk production and fertility.
- Prolactin
- Biomarkers
- Information
Prolactin
Prolactin is a hormone that is secreted by the pituitary gland. It is important for lactation (milk production) in women who are breast-feeding. It is also important for regulation of the menstrual cycle and for normal sexual function in both men and women. Prolactin levels can be high for many reasons, including pregnancy, breastfeeding, stress, certain medications, and some medical conditions. High prolactin levels can cause problems such as infertility, missed periods, and erectile dysfunction in men. In women, high prolactin levels can cause problems such as irregular periods, ovulation problems, and reduced sex drive.
Symptoms of High Prolactin in Men (Hyperprolactinemia)
Symptoms of high prolactin in men include:
- Decreased sex drive
- Nipple discomfort
- Breast enlargement
- Erectile dysfunction
- Reduced body hair
- Headaches
- Changes to vision
Additional Information
A high prolactin level can indicate a problem with the pituitary gland, such as a tumour. A low prolactin level can indicate a problem with the thyroid gland or ovaries.
A prolactin blood test is usually performed as part of a routine panel of blood tests. The test is simple and painless, and involves drawing a small amount of blood from a vein in your arm. The sample is then sent to a laboratory for analysis. Results are typically available within a few days.
If you are scheduled for a prolactin blood test, be sure to tell your doctor about any medications or supplements you are taking, as they can interfere with the results. Also, be sure to eat and drink normally before the test. You may be asked to avoid strenuous exercise for 12 hours before the test.
If you have questions or concerns about the prolactin blood test, be sure to talk to your doctor.
Symptoms of High Prolactin in Women (Hyperprolactinemia)
Symptoms of High Prolactin in Women include
- Headaches
- Changes to vision
- Irregular menstrual cycles
- Sensitive breasts and nipples
Statistics on Prolactin









Experts Opinion on Prolactin Home Tests
"Prolactin is produced in the pituitary gland and is important in the production of breast milk and is useful for fertility. By monitoring the levels of prolactin, you may be able to detect a type of pituitary gland tumour or gynaecomastia."

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