Prolactin is a hormone produced by the pituitary gland, often associated with stimulating breast milk production after childbirth—but its role in the body goes far beyond that. In both men and women, prolactin influences reproductive health, sexual satisfaction, immune function, and even emotional balance. When prolactin levels are out of range—either too high or too low—it can lead to a wide range of symptoms, including irregular or missed periods, infertility, unexpected breast discharge, low libido, erectile dysfunction, or mood disturbances. Elevated prolactin, a condition known as hyperprolactinemia, can be triggered by stress, certain medications, thyroid issues, or tumors called prolactinomas. Despite its powerful effects, prolactin imbalances often go undiagnosed because the symptoms can mimic other health concerns. A simple blood test can measure your prolactin levels and provide essential insights into your hormonal health.Understanding prolactin isn’t just for new mothers—it’s a key to unlocking better health, balance, and peace of mind for everyone.