The first 3 days after breast augmentation with autologous fat is the peak period of fat absorption, 3 days later, with their own blood vessels grow into the fat cells tend to stabilize, regain vitality and regeneration, so the 9th day after the operation will not appear the phenomenon of “shrinkage”. 3 months later, the fat will be retained forever and will not be absorbed again. After 3 months, the fat will remain forever and will not be reabsorbed, so it can be absorbed naturally after 3 months. In fact, the postoperative effect has a direct relationship with the doctor’s filling technology, the doctor’s filling technology is very important, where to fill, how much to fill, will affect the retention of fat. In addition, post-operative care and nutrition are also influential factors. Overall speaking, the absorption rate is mainly affected by three factors: 1, depends on the doctor’s technical experience; 2, depends on the quality of the fat, thighs, buttocks fat particles are smaller, dense, its lipoprotein activity is higher, the transplantation of the survival rate is higher, while the quality of the fat in the abdomen is poorer, the transplantation of the survival rate is lower; 3, the larger the amount of each injection, the survival rate will be lower. Due to the limited tissue capacity of breast, too much fat tissue can not be injected at one time, otherwise the transplanted fat tissue can not get sufficient blood supply and is prone to necrosis.