A hand cut by a knife and with a deep wound should be treated promptly in a hospital. Because some patients may be combined with vascular nerve, or tendon injuries, they should be further explored, and surgical anastomosis is needed if necessary. Usually also need to carry out debridement treatment, application of saline and hydrogen peroxide repeatedly wash the wound more than three times, if there is an obvious foreign body, should also be removed, choose local anesthesia for debridement or dilation suture, carry out the wound node suture. Postoperative elevation of the finger can reduce the symptoms of local swelling, and should be applied to sterile dressings, within 24 hours of the injury, should be promptly injected with refined tetanus antitoxin injection, and before use, should also be routinely drug test sensitivity. In addition, systematic anti-infection treatment should be carried out after the operation.