If the patient is cut by a knife, if the wound is shallow, the wound can be sterilized with saline or iodine povidone, and then bandaged with gauze or band-aid, and change the medicine in time, and the wound will heal slowly. If the patient’s wound is deeper, it is relatively more troublesome to deal with. The patient needs to go to the hospital, let the doctor to expand the wound, clean the wound, the inside of the foreign body to remove, if necessary, need to inject tetanus injection, the wound for suture, this time the patient can not be handled by themselves, be sure to seek medical attention in a timely manner.