After the hand is cut by a knife, the specific treatment plan is mainly combined with the wound condition to make a comprehensive judgment, the clinical damage includes minor wounds, deeper wounds, contaminated wounds, the treatment plan includes local disinfection, local suture, medication, daily care and so on. 1. Minor wounds: Most minor wounds can heal on their own afterward, only need to disinfect the area around the wound with povidone-iodine, and avoid excessive contact with water at an early stage. 2. Deeper wounds: For deeper wounds, local suturing is usually needed, and after suturing, a local bandage can be applied around the wound. 3. contaminated wounds: in addition to the treatment of the wound surrounding, but also pay attention to the injection of tetanus antitoxin, to prevent the emergence of the corresponding pathogenic infection. The knife cuts accompanied by obvious activity limitations, should promptly seek medical observation, under the guidance of clinicians for standardized treatment.