First of all, body fat in body parts is more suitable for improving facial depression, including thigh and side hip, arm and abdomen fat. If you need to fill in a relatively large range, you will generally choose the fat on the thighs and buttocks or the outside of the arms, because the fat particles in these parts are relatively small and the survival rate will be higher than that in the abdomen. Usually, after the fat is extracted, it will be washed and centrifuged, and the pure fat will be suspended and slightly rough, and then these fats will be injected into the grooves or wrinkles of the cheeks in the form of liquid. But if you need more fat, you will consider the relatively thick part of abdominal fat. Because each patient's fat filling extraction method and liposuction slimming method are different, in order to maintain the activity of fat, it is necessary to extract fat with a small negative pressure, so that the fat to be filled will not be hurt, so the expansion agent containing anesthetic and painkiller will be used first in the fat extraction part, so that it will not hurt when liposuction. Another special liposuction area is around the navel, and the fat around the navel is in the form of fat globules. Usually, when liposuction is performed, the fat block is removed by surgery, because the vascular network of navel fat globules should be preserved, which is generally used to fill the eye socket or local deep depression, so that the survival rate will be improved and the effect will be better. The statement that "filling with autologous fat can fill the cavity and liposuction, killing two birds with one stone" is actually mostly aimed at the small amount of autologous fat, and surgery usually takes only a few tens of CC. Unless more parts are filled at one time, it may take 200 CC, so it may really be impossible to partial weight loss. However, when taking body fat, it is usually carried out under local anesthesia or general anesthesia, and it is necessary to wear a bra locally for at least two weeks after taking fat.