The steps of dressing the wound are to check the wound first, remove the foreign matter inside the wound, then disinfect it, and then fix the dressing after disinfection. If there is bleeding in the wound, pressure should be applied to stop the bleeding, and if the bleeding cannot be stopped by oneself, medical attention should be sought promptly. If there is a wound, the wound should be exposed quickly, the wound should be examined, and the foreign matter in the wound should be removed, and the wound should not be touched with anything that is not sterilized during the examination to avoid aggravating the infection. All the skin around the wound needs to be sterilized with iodine or alcohol cotton balls, then cover the wound with sterilized gauze blocks or gauze pads, and then bandage and fix it. When bandaging the wound, the movement should be agile, accurate and gentle, do not collide with the wound, which may cause pain, bleeding and infection. The dressing should not be too tight or too loose, too tight will affect the blood circulation, too loose is easy to let the dressing move, fall off, knot to avoid the wound or when sitting or lying down will be pressed to the site. If the wound is large and bleeding, use gauze strips or gauze to fill the wound and press firmly to stop the bleeding before bandaging. If the bleeding cannot be stopped and the situation is serious, the patient should be taken to the hospital for treatment.