The larger the breasts are, the more they may sag due to gravity, which can be improved by doing breast expansion exercises, wearing bras, and surgery. Breasts will generally start to develop from puberty, with age, mammary gland development perfect breast enlargement, especially during pregnancy and postpartum will have breast milk and so on and cause breasts to further increase in size and sagging, and gradually enter into the menopause with the hormone level decreases, the breasts will also shrink and sagging. You can do chest expansion exercise to exercise the chest muscles to improve sagging, you can also choose to comfortably lift the role of the bra, if the breast development is too large to affect the life can be surgical treatment. Sagging breasts can be treated with surgery if the breasts are too big for your life. You should consult a doctor for the cause of sagging breasts and get treatment under the doctor’s guidance.