The amount of fat extracted by autologous fat transplantation is generally very small, and the possibility of this situation is still very small. If it happens, it can only be the doctor's improper operation method, and the fat layer is divided into shallow and deep layers. Occasionally, some inexperienced doctors will take out superficial fat when liposuction, which will lead to skin adhesion and unevenness. Therefore, for this operation, you must find an experienced doctor to do it, and recommend Professor Fan Zhihong, a medical cosmetologist in Hongren, Shanghai, who is also from Yan Chai Hospital. In addition, if there is unevenness, you can do 1-2 fat transplants to restore smooth skin surface.