Skin grafting is a cosmetic surgery for skin problems. Generally, a part of skin is removed from one's healthy skin to cover the area where scars are removed. It is more effective for large area scar tissue or local tattoo which is difficult to clean. There will be traces of suture around the wound after operation, and scars will be left at the site of skin removal. If you choose skin grafting with tight skin and good suture technology, the effect will be much better than the previous scar. Therefore, the preoperative judgment and the expected surgical effect must be confirmed in advance, so as not to achieve the ideal effect after transplantation. Skin grafting is mainly suitable for scars left by scalds and burns.