Dictionary of Cancer Terms
View in Spanish: Prolactina
Prolactin (proh-LAK-tin)
A hormone that is made by the pituitary gland (a pea-sized organ in the center of the brain). Prolactin causes a woman’s breasts to make milk during and after pregnancy, and has many other effects in the body.
Source: National Cancer Institute Dictionary of Cancer Terms, available at www.cancer.gov/dictionary.