The causes of breast swelling and pain in women before menstruation: 1, the body’s sex hormone levels are relatively high, resulting in water and sodium retention in the breast, thus causing breast swelling and pain, which can be relieved after the onset of menstruation, this situation can be handled without treatment, the pain is more obvious can be local massage or hot compresses. 2, women’s early pregnancy reaction, women after pregnancy estrogen levels increase, the second development of the mammary gland, the gland in the breast enlargement, glandular thickening, the blood vessels on the mammary gland now exposed, Montessori nodules bulge, breast enlargement, the problem of breast swelling and pain can be diagnosed by early pregnancy test. The first thing you need to do is to take an oral medication, such as the Chinese herbal medicine, or a breast nodule, and then use the topical Chinese herbal medicine, Breast Ankang, to treat the pain.