Test Description: Prolactin (PRL)

The Prolactin (PRL) test measures the level of prolactin, a hormone produced by the pituitary gland that is primarily responsible for stimulating milk production after childbirth. This test is commonly used to investigate causes of abnormal lactation (galactorrhea), infertility, or menstrual irregularities. Elevated prolactin levels can indicate conditions such as pituitary tumors (prolactinomas), thyroid dysfunction, or stress, while low levels may suggest issues with pituitary function. It is also used to assess reproductive health in both men and women.