is a hormone primarily associated with lactation (milk production) in women. It is produced by the pituitary gland and plays a crucial role in reproductive health. Prolactin levels can rise during pregnancy and breastfeeding. High levels of prolactin when not associated with pregnancy or breastfeeding could be an indication of various conditions, such as pituitary tumors, certain medications, or other health issues. Low levels can also impact fertility and reproductive health.