If the wound is open, and the wound is shallow, repeatedly disinfect the wound with iodophor and use sterile gauze dressing, tetanus is less likely. 2, if the wound is deeper and the mouth is larger, the wound is more suitable for the survival and reproduction of anaerobic bacteria, there is a risk of tetanus infection. The patient needs to go to the hospital as soon as possible, the doctor will use hydrogen peroxide to thoroughly disinfect the wound, remove foreign bodies in the wound and blood clots stitches wound, and inject tetanus antitoxin or tetanus immunoglobulin to prevent tetanus infection.