Dec 30, 2024 · Overview What is prolactin? Prolactin (also known as lactotropin and PRL) is a hormone that’s responsible for lactation and certain breast tissue development and contributes to hundreds of …

Prolactin levels may be checked as part of a sex hormone workup, as elevated prolactin secretion can suppress the secretion of follicle stimulating hormone and gonadotropin-releasing hormone, leading …

Dec 3, 2025 · High prolactin levels (hyperprolactinemia) can lead to infertility, loss of libido, mood changes, and more.

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.

Prolactin affects many body processes. But its main role is to signal breast tissue to grow during pregnancy and make milk for breastfeeding after birth. So, prolactin levels in pregnant women and …

Prolactin is a hormone produced in the pituitary gland, named because of its role in lactation. It also has other wide-ranging functions in the body, from acting on the reproductive system to influencing …

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.