After the finger is cut, it should be cleaned, sterilized and bandaged in time. If the wound is large and deep, consult a doctor as soon as possible for debridement and suturing. If your finger is cut, you can treat it yourself if the wound is small and shallow. First, rinse the wound under running water, then use iodine povidone to disinfect the entire finger along the wound and outward, usually at least three times, and then bandage the wound with Band-Aid or sterile gauze after disinfection. If the wound is large and deep, and it is difficult to stop bleeding on its own, pressure can be applied to stop the bleeding after disinfecting the wound. Finger arteries generally travel on both sides of the finger, so use the healthy finger to compress the arteries on both sides at the root of the injured finger. Go to the nearest regular medical institution as soon as possible for wound debridement and suturing. If the tendon of the finger is injured, tendon suturing is necessary. If the wound is deeper, after cleaning and suturing, you also need to follow the doctor’s instructions to inject tetanus antitoxin to prevent tetanus; after the injury in order to prevent and control infection, you should follow the doctor’s instructions to take amoxicillin or cefaclor and other antibiotics; after the suture, you need to change the medication regularly, and remove the stitches.