Elevated prolactin levels can cause symptoms like irregular periods and nipple discharge. Low prolactin levels are less common and can cause a reduced milk supply in lactating individuals. High ...

While prolactin is most commonly associated with pregnancy and breastfeeding, elevated levels of this hormone—known as hyperprolactinemia—can be found in young women who aren’t pregnant or lactating.

Breast cancer is one of the most prevalent cancers among women worldwide, and researchers have long sought to understand the myriad factors that may influence its development. Among these factors, ...