Indications for breast augmentation with autologous fat: 1. People with certain body fat base. 2.All except those with Ⅲ degree of loose and sagging chest. 3.Those who are healthy and have no acute or chronic diseases. 4.Dysplasia of breasts or one breast is too small due to benign lesions, asymmetry of both breasts. 5.Mammary gland atrophy caused by breastfeeding or childbirth. Mild sagging of breasts or nipple inversion due to lack of exercise or breastfeeding. 7.Female patients who have to remove their breasts due to diseases and retain the nipple areola. 8.The breast volume is not small, the foundation is good, and its thorax has the condition of enlargement. 9.Breast tissue lesions before puberty (such as infection) or after trauma, poor breast development or non-development after surgery. 10.Breasts are not small and asymmetrical on both sides. 11.Sudden weight loss and body thinning; spontaneous breast atrophy after pregnancy (after sterilization)