The causes of female breast sagging include physiological factors, pathological factors, and some other factors, such as sudden weight loss. 1. Physiological factors: mainly include aging, pregnancy, breastfeeding and so on; this is a normal phenomenon, without special treatment. 2. Pathological factors: mainly including mammary gland atrophy, breast hypertrophy, etc. Girls with sagging breasts caused by pathological factors should pay attention to it and take active treatment. 3. Other factors: mainly include sudden weight loss, breast implant removal and so on. If the body is relatively obese, after losing weight chest breast reduction, there will be the phenomenon of breast sagging; have done breast augmentation, breast implants will also lead to breast sagging after the removal of breast implants. Girls with sagging breasts should consult a doctor in time to clarify the cause, so as to avoid the existence of pathological factors, affecting the health of the body.