Surgical debridement: In the first step, the exposed wound needs to be rinsed with saline to clean off all foreign bodies and soil from the wound. In the second step, the exposed wound is flushed with hydrogen peroxide and iodophor to achieve a clean wound. In the third step, if the wound is relatively minor and the injury is not more than 6 hours old, a one-stage suture can be taken. The fourth step, if the injury has been more than 8 hours, there is a higher risk of infection to choose the second stage suture. Surgical debridement is an aseptic technique, which mainly cleans open or contaminated wounds, removes blood clots, foreign bodies, and necrotic tissues from the wound, and turns the contaminated wound into a clean wound, which can reduce the secondary infection of the wound and also make the wound faster and better recovery and healing.