Chest swelling and pain including lumbar pain before menstruation and before menstruation, in the middle and late menstrual period belongs to the luteal secretion period, progesterone may be more exuberant and developed, which will stimulate the vasodilation of the breast, causing local edema of the breast to occur, which may lead to pins and needles-like pain, or even swelling and pain. At the same time, the blood vessels in the pelvic cavity are dilated before the menstrual period, which can stimulate the lower back and cause discomfort, and some people may even experience mild abdominal pain. It is only a hint that the menstruation may come soon. It is recommended to observe for another 5-7 days, and it will return to normal after the end of the menstruation. Spicy and stimulating foods, including cold and raw foods, should be avoided to avoid severe abdominal pain when menstruation occurs.