Autologous fat breast augmentation is a method of applying fat transplantation technology to inject fat from other parts of the body into the breasts. Autologous fat is mainly extracted from the buttocks, legs, waist, abdomen and other parts of the body, and highly pure fat particles are extracted by fat separating instrument, and then injected evenly into the breasts in layers by using miniature tube needles. In addition, because the filler is its own fat, there will be no rejection reaction after injection, and at the same time of breast augmentation, it can also play the role of liposuction and weight loss. However, autologous fat breast augmentation also has corresponding risks, some patients may lead to calcification of part of the fat or the formation of cysts, hard lumps and so on. Usually, a small amount of autologous fat transplantation is relatively safe and the survival rate of fat after injection is high, while a large amount of autologous fat transplantation is more dangerous, so it is recommended to combine with one’s own situation and follow the doctor’s instructions for targeted transplantation.