Burn skin grafting is considered to be a failure if there is subcutaneous hematoma, wound infection, improper pressure on the skin piece, etc., resulting in extensive necrosis of the skin piece. 1. Subcutaneous hematoma: mostly caused by factors such as incomplete hemostasis, improper fixation, abnormal coagulation mechanism of the patient, etc., resulting in subcutaneous bleeding after burn implantation and formation of a certain amount of hematoma, resulting in a lack of nutrient support for the skin, which can cause extensive necrosis of the skin, so subcutaneous hematoma is considered as a failure of the burn implantation. 2. Wound infection: mostly due to bacterial invasion in the process of skin grafting, resulting in septic infection of the wound, accompanied by local elevated skin temperature, resulting in necrosis of the skin cells and nutritional support obstacles, resulting in extensive necrosis, so wound infection is considered a burn skin graft failure. 3. Improper pressure of skin piece: mostly caused by subcutaneous blood and fluid accumulation, skin suture too tight and other factors, resulting in neovascularization growth is affected, resulting in the nutritional supply of the skin piece is limited, resulting in necrosis of the skin piece, so improper pressure of the skin piece is considered as a burn implantation failure. In the implantation process, attention should be paid to adequate hemostasis, postoperative proper fixation of the skin piece, to maintain close contact between the skin piece and the trauma, burn implantation to have a greater likelihood of survival, it is recommended to go to the hospital in a timely manner to consult the guidance of a specialist.