Head injuries first need to consider whether there is intracranial damage, to observe whether the patient has impaired consciousness, after the head injury to observe the damage to the scalp, to see whether there is subcutaneous bleeding. If the patient appears blurred consciousness or drowsiness, etc., it is necessary to promptly go to the hospital for examination to prevent intracranial hemorrhage, which may also lead to death in serious cases. If there is no intracranial injury, there is often no fatal risk. If there is a hematoma on the scalp, ice can be applied as soon as possible at the time of injury to reduce the formation of the hematoma and relieve pain.