Because the tissue is damaged during plastic surgery, the body will undergo a self-repair process in order to return to normal. During this process, a large number of repair factors gather on the face, causing edema.

Cosmetic surgery, also known as plastic surgery or plastic surgery, mainly treats trauma and diseases of the skin, muscles and bones, as well as congenital or acquired defects and deformities of tissues or organs. Treatment includes both repair and reconstruction. The treatment scope of plastic surgery mainly covers trauma, diseases, congenital or acquired defects and deformities of tissues or organs such as skin, muscles and bones. Treatment includes repair and reconstruction. Various autologous tissue transplants are performed surgically. Allogeneic, xenogeneic tissue or tissue substitutes can also be used to repair tissue defects or deformities caused by various reasons to improve or restore physiological functions. and appearance.