Hyperprolactinemia inhibits the secretion of gonadotropins from the pituitary gland, which affects the synthesis of sex hormones in the ovaries and lowers the level of estrogen in the serum, resulting in disruption of ovarian function and causing infertility. In addition, it may also lead to luteal insufficiency, which makes it difficult for women to conceive, and even if they get pregnant, they may have miscarriage or pre-eclampsia. Therefore, when hyperprolactinemia occurs, it is important to take oral medication, bromocriptine, for a period of time to restore the normal menstrual cycle, because it can also cause irregular menstrual cycles, which can lead to abnormal ovulation. In case of persistent hyperprolactinemia, a CT scan should be performed to rule out the presence of pituitary tumors in the head.