Women in the breast before menstruation causes of swelling and pain: 1, the body’s sex hormone level is relatively high, resulting in water and sodium retention in the breast, thus causing breast swelling and pain, can be relieved after menstruation, this situation can not be dealt with, the pain is more pronounced can be localized massage or hot compresses. 2, women’s reaction to early pregnancy, women after pregnancy estrogen level increases, the mammary glands secondary development, the mammary glands in the glands to increase, the ducts thickened, the blood vessels on the mammary gland now exposed, the Monk’s node bulge, breast enlargement, the problem of breast swelling and pain, you can do early pregnancy test to confirm. The breasts will be enlarged, the ducts will be thickened, the blood vessels on the mammary glands will be exposed, the Montgomery’s nodes will be raised, the breasts will be enlarged, and the breasts will be swollen and painful, so you can do the pregnancy test to confirm the diagnosis.3. If you are suffering from lobular hyperplasia of the mammary glands with mild symptoms, and the water and sodium retention in the breasts will aggravate the swelling and pain of the breasts before menstruation, then you can take the Chinese medicine Easy Pill or the tablet of breast nucleus dispersing and knotting and at the same time, you can apply local topical traditional Chinese medicine to treat the mammary gland with Ankang.