Autologous fat lip augmentation is to extract fat particles from fat accumulation areas of the body, extract them through centrifugation and purification procedures, and then inject them into the lips to achieve the effect of lip augmentation and thickening. Autologous fat transplantation can correct fat accumulation in other parts of the body at the same time. The material for lip augmentation comes from oneself, there will be no rejection reaction, and the effect will be effective for a long time after the fat has been activated. There is no incision in the surgery, only an injection eye, and because it is hidden in the corner of the mouth, the scar is almost none. In terms of surgical risk, autologous fat lip augmentation mainly has the following risks: 1, infection: due to the rich blood circulation in the lips, it is very easy to bring bacteria or viruses into the local area, if the infection is localized, the patient may have local redness, swelling, heat, pain or pus, which requires oral antibiotics. If the infection spreads to the whole body with the blood, the patient may have fever, and then intravenous antibiotics are needed; 2, hematoma: the lip is rich in blood vessels, and there is a possibility of damage to the local small blood vessels in the process of injecting fat, and if the bleeding is not stopped properly, it may result in the appearance of a local hematoma on the lip; 3, unevenness of the local skin: because the fat injected into the lip will not be fully viable, and some places may survive more, and some places survive less, so it may not be possible for the lip to become fully alive, so it may be possible for the lip to become fully alive. Some places may survive more and some places may survive less, so it may cause different parts to produce more or less fat, so there will be unevenness; 4, the lip contour changes after fat injection in poor shape, need to be removed; 5, a small number of embolism symptoms, such as necrosis of the lip.