If the injury is superficial, it is only superficial abrasion, and there is no obvious bleeding, which has no obvious effect on the activities of limbs. No need to go to the hospital for treatment. You can disinfect the medical alcohol at home and simply bandage the wound. If the wound is deep and there is more bleeding, you should go to the hospital for debridement in time. In some cases, the wound should be sutured and closed with tetanus needle to prevent tetanus.