The most commonly used method of breast enlargement without surgery is breast injection, and autologous fat is the best injection material, and the fat is its own tissue that will not produce rejection reaction. Autologous fat breast augmentation is divided into the following four steps: 1, pre-operative design, pre-operative candidates should fully communicate with the doctor to decide the size of the breast augmentation and the location of the fat. 2, the removal of autologous fat, according to the pre-operative design of the program will be taken out of the autologous fat. 3, the processing of autologous fat, removed from the autologous fat can not be directly injected into the chest, to be centrifuged, purified, add growth factors and other appropriate processing. 4, the processed fat injected back into the chest, according to the pre-operative design size injection corresponding to the size of the growth factors. The processed fat will be injected back into the breasts, and the corresponding amount will be injected according to the size designed before the operation, and all the steps of breast augmentation by injection will be completed after the injection is finished. The next step is to rest and wait for the autologous fat to slowly survive, and the autologous fat will survive accordingly in about three months. If the breasts are small and not up to the candidate’s requirement, some more fat can be taken for the second injection.