Nipple pain before menstruation may be a normal physiological phenomenon. The estrogen and luteinizing hormone in a woman’s body will increase before the onset of menstruation, and at this time, the milk ducts may dilate, and the tissues between the breasts will be edematous, thus causing breast pain. Some women with breast pain caused by breast hyperplasia may experience severe breast pain before menstruation, which can be relieved after menstruation is completely cleared, so they can go to a breast specialist in the hospital to check the cause. Women may experience nipple pain before menstruation is mostly related to the hormone levels in the body, usually to regulate the state of life, try to avoid the body by the environment, emotions, diet, sleep, endocrine disorders.