For different parts of the body and different wounds, the way of bandaging is different, such as covering the wound with bandage after general skin incision is cleared and sterilized, hanging bandage when necessary for limb fracture, and pressure bandage for wounds after breast surgery. 1. General skin incision dressing: after the completion of surgery or after adequate debridement, the wound site is again sterilized with iodophor, and then the wound is adequately covered with gauze. In general, a minimum of 16 layers are required, that is, the gauze is not open, for some wounds with oozing can be covered with two more layers, and finally fixed with adhesive tape, perpendicular to the longitudinal axis of the body. 2. Fractures of the limbs: it is necessary to follow the part of the injury, bandage, and if necessary, suspension, such as the fracture of the forearm of the upper limb, which is conducive to recovery. 3. For wounds after breast surgery: because of the more subcutaneous fat in the breast, it is mostly used in the way of pressure bandage, that is, some cotton pads are covered on the surface of gauze, and the bandage is fully wrapped and fixed. Specifically need to be operated by specialized doctors.