Surgical debridement is one of the frequently used clinical treatments for severely injured wounds, and the general purpose of debridement is as follows.1. Thorough rinsing of the wound with hydrogen peroxide, viable iodine, and saline can remove foreign bodies, necrotic tissues, and fine uniforms in the wound, so that the wound reaches a relatively sterile environment, which is conducive to the faster growth of newborn granulation tissues. 2. The wound can be hemostatic, especially for the wound with small arteries or small veins active bleeding, purely through the local pressure hemostasis effect can not be good, the wound can be sutured, hemostatic effect is more reliable. 3, through the wound cleaning can make the wound to maintain an aerobic aerobic environment, to avoid the formation of anaerobic environment caused by tetanus bacillus breeding, triggering tetanus infection, endangering the life of the patient.