Many patients who have elevated levels of bleeding prolactin for various reasons are concerned about whether a tumor has grown inside the skull. After a visit to the hospital, the doctor may prescribe medication and treat them with oral bromocriptine. In fact, elevated prolactin levels are not always caused by pituitary tumors. Prolactin is secreted by the anterior pituitary cells, which is a type of stress hormone and is secreted in a pulsatile manner, and is affected by many factors. Stress, stress, chest wall irritation, medications (gastrodynamics, sedatives, antipsychotics), and nipple sucking can all cause levels to rise. However, pituitary prolactinoma should be highly suspected if prolactin levels are more than 5 times the upper limit of normal, and women may experience amenorrhea and breast overflow, while men may experience hypogonadism and headaches. If you find elevated prolactin levels, it is recommended to visit and consult with the endocrinology department of a municipal or higher hospital, and not to use medication blindly to avoid unnecessary treatment.