The time of discharge after debridement and implantation depends mainly on the survival of the skin graft, if it survives well, it can be discharged in about 2 weeks, otherwise it needs to continue to stay in the hospital. The main purpose of debridement is to cover the wound with a normal skin graft to promote healing. The survival of the grafted skin in the implanted area depends mainly on the blood supply of the area, which is easy to survive, but not easy to survive in the exposed areas of tendons, ligaments, bones, nerves and blood vessels. For most of the debridement and skin grafting, the skin piece relies on the nourishment of subcutaneous tissue and plasma exudate, and can be basically stabilized 1 week after the operation, and if there is no necrosis after 2 weeks of postoperative observation, it indicates that the skin piece is basically alive, and then it reaches the standard of hospital discharge. In addition, for the skin graft area, if the damage is serious and the damage area is large, the survival of the skin piece is slower, and the discharge time also needs to be determined by the specific healing situation after the skin graft.