Autologous fat filler is a preferred method of “rejuvenation management”. Generally speaking, the technology itself is relatively safe and reliable, and the post-operative results have also been recognized by the candidates: From this set of comparison pictures, we can clearly see that: due to the sunken temples, apple muscles and cheeks, the cheekbones appear to be protruding, together with tear troughs and decree lines, the whole face not only looks old, but also has an unpleasant “bitter gourd face”. After filling up the sunken parts of the face, it looks sweet and more “blessed”, and also a lot younger. This applicant asks: What are the most serious complications of lipofilling cosmetic surgery? First, fat embolism (relatively rare) facial filler autologous fat, the most serious complication is fat embolism, which may cause sudden blindness, shock or hemiplegia, or even death. In the following cases, the possibility of fat embolism is high: 1. Sharp injection needle to fill fat When using a sharp needle, it must be used only for shallow plane injection. If a sharp injection needle, used for deep plane injection, may pierce and puncture the blood vessels at the filling site, causing fat particles to enter the blood vessels, thus blocking important blood vessels and causing serious or even life-threatening problems. Therefore, in order to avoid triggering such complications, it is best to use blunt-tipped cannula needles to inject fat in the return and to draw back before injection. 2. Physical reasons of the applicant The high blood viscosity, vascular sclerosis and old blood clots of the applicant, together with long-term bed rest after surgery, aggravate the blood clots; long-term bed rest after surgery, slow blood flow in the lower limbs, causing vascular embolism. Blood clots may also fall off and block important blood vessels, causing serious or even life-threatening problems for patients. After autologous fat filler, it does not mean that you cannot exercise. For 4 weeks after surgery, avoid strenuous activities (that increase the heart rate more than 100 beats per minute, such as anaerobic fitness, weight lifting and bending). After 4 weeks postoperatively, slowly increase your activity level. At 3 months after surgery, it will be able to return to normal level. Second, the secondary serious infection, the same may be life-threatening This requires that the candidates, before choosing autologous fat filler facial, to do a medical examination as required, choose a regular hospital (with conditions for the whole aseptic operation), pay attention to daily care after the operation, and communicate with the physician in time if there are any problems.