Fat grafting now strictly speaking, each operation step directly affects the survival rate, the instrument is good or bad, the degree of damage to the fat cells, temperature, environment, the time of separation, centrifugation time, retention time, the time of transplantation, the amount of liquid – too much will be drowned, too little will be dry dead, and the pressure – pressure will be squeezed fat cells, but the pressure is small and can not be pushed in, so each operation, each link is crucial to the success of fat grafting. So every operation, every link is crucial to the success of fat grafting. According to medical literature, the success of autologous fat transplantation has the most to do with the process of injection. To prevent fat necrosis and hardening after injection, the following tips must be noted: The process of fat extraction must strictly observe aseptic operation The process of fat purification to avoid destroying the fat The injection should be layered The injected fat should be in contact with the original tissues Cups in one go from A to C? Some patients who undergo autologous fat Some patients undergoing breast augmentation with autologous fat grafting want to go from A to C in one go, and some inexperienced and unskilled surgeons may inject too much fat at one time in order to satisfy their clients. If the amount of fat is too much or the injection is too concentrated, the fat will be necrotic, dissolved and absorbed due to insufficient blood supply, which will easily lead to infection, fibrosis or calcification, fat necrosis and other sequelae. Autologous fat transplantation is very safe, no safety risks? It is said that autologous fat grafting is green and safe, which makes patients mistakenly believe that there will be no failure cases of fat grafting surgery and that it is foolproof to become beautiful. All cosmetic procedures have safety risks to a greater or lesser extent, especially procedures like fat grafting, and autologous fat fillers can have failure cases. Autologous fat grafting may have the following failures: Infection, hematoma Facial autologous fat filling procedures such as lip augmentation, cheek augmentation, etc. can cause infection. The cause of failure may be related to the surgical technique, or the original infection in the surgical area, or the amount of grafting is too large. Infection and hematoma will directly affect the survival rate of the transplanted fat, so that the desired results will not be achieved. Insufficient fat filling According to relevant statistics: facial fat transplantation has a 3%~14% dissatisfaction rate, in which the autologous fat filling failure is partly due to the fact that the filling volume still cannot meet the patient’s requirements after the usual number of transplantation. The problem of excessive absorption of transplanted fat and unpredictable grafting results has been the difficulty of autologous fat grafting failure. Excessive lipofilling Excessive autologous lipofilling, failure manifests itself as bloating in the surgical area, which may be symmetrical or unilateral; either starting after surgery or appearing 3 to 6 months after surgery, and is extremely common in cheek augmentation procedures. Fat migration There is a possibility of migration of the transplanted in fat tissue before the fat becomes viable after autologous lipofilling surgery. It mostly occurs in the area of excessive subcutaneous scar tissue or ligament distribution area (e.g. nasolabial fold area). When encountering a similar situation, first find the reason for the surgery failure, and then find a plastic surgery hospital with professional qualifications and scale to repair it. Although surgical failure can be repaired, but the main thing is to do prevention, find the right doctor, find the right hospital, to avoid failure cases, very critical.