Prolactin is mainly secreted by the pituitary gland, which in women promotes the development and growth of the mammary glands; in men, it promotes the growth of the prostate gland. Increased prolactin secretion will have different effects on men and women. 1. Men: For men, an increase in prolactin will have an inhibitory effect on sexual function, such as a decrease in sexual function, loss of libido, and if the prolactin-producing tissues are too large, symptoms such as dizziness and loss of vision may occur. 2. Women: For women, elevated prolactin has a greater impact on menstruation, which may lead to menstrual disorders, or even amenorrhea, and may also lead to abnormal secretion of milk from the female breasts. In addition, dizziness and vision loss may also occur. When prolactin is elevated, it is necessary to go to the hospital in time for the corresponding examination, identify the cause of the disease and actively follow the doctor’s instructions for treatment.