1, diet, you can eat more collagen-rich foods, such as pig’s feet, beef tendons, sea cucumbers, clams, etc., but also more honey. Beans are rich in isoflavones, whose structure is similar to estrogen, which can make the breasts become full. 2, breast massage, breast massage can dredge the deep lymphatic vessels, increase the vitality of breast cells, promote the formation of elastic fibers in the breast connective tissue, and prevent breast sagging. Every day before going to bed with a hot towel hot compresses on the breasts, and then with certain techniques to massage the breasts, massage the index finger, middle finger and ring finger together, placed on the breast to nipple as the center, clockwise from the outer edge of the breast to the inner side of the massage, the force should not be too heavy. 3, wear a bra, breastfeeding, insist on wearing a bra can prevent breast sagging, replaced with a tight-fitting underwear can be lifted up to the breast, so that the breasts are firm to avoid sagging, but at night, sleep! The most important thing to remember is that you should not wear a bra at night.