Physiological period is also known as the menstrual period, menstrual breast pain caused by physiological reasons will generally be relieved on their own, pathological causes may not be relieved on their own. Before the onset of menstruation, due to the rise in the level of estrogen in the body, will lead to breast hyperplasia, interstitial tissue edema and milk, after the onset of menstruation the level of estrogen in the body decreases, the symptoms of breast swelling and pain will be relieved. The symptoms of breast swelling and pain will be relieved after the estrogen level drops after the menstrual period. The breast rising during physiological period may also be caused by pathological reasons, such as breast hyperplasia and mastitis, breast hyperplasia will have the symptom of breast lump, mastitis has the typical performance of breast redness, swelling, heat and pain, which is not necessarily relieved on its own. Women should maintain a stable mood during physiological period and pay more attention to rest, if the symptoms of breast swelling and pain are more serious, you need to consult a doctor for examination in a timely manner.