Epidemiological and clinical profiles of Saudi patients with hyperprolactinemia in a single tertiary care center.

Background: Prolactin is a hormone of the pituitary gland whose main function is the production of milk. Hyperprolactinemia is defined as an increase in prolactin levels above 25 μg/L in women and 20 μg/L in men. Causes of hyperprolactinemia include pituitary tumors, especially prolactinomas.