A cut on the hand can be sterilized with iodophor, etc. and then bandaged with gauze, etc. If a hand is accidentally cut, the first thing you should do is to observe whether the wound has been contaminated, and observe the shape, size, depth and bleeding of the wound. If the wound is contaminated with dirt, etc., you should first clean the wound, using running water or saline to fully wash the wound. After rinsing, disinfect it with iodophor and other disinfectants, and then bandage it when it is disinfected. If the bleeding is more serious, you can first stop the bleeding, with gauze and other pressure to stop bleeding; if the finger bleeding can pinch the root of the finger on both sides to stop bleeding, to stop bleeding and then bandage, bandage can be used with band-aids, dressings, gauze, etc., use discretion. If you are cut by a rusty knife, etc., you will also need to go to the hospital for a tetanus shot. Please go to the hospital for further treatment after self-treatment.