Adults who fall on the back of the head should go to the hospital for emergency cranial CT examination to clarify whether there is intracranial hemorrhage and skull fracture, if the cranial CT examination indicates that there is no abnormality in the skull and skull, no special treatment is needed, the patient is told to go home to bed and rest quietly to eliminate and alleviate the symptoms of headache, dizziness, nausea, vomiting, etc., generally these symptoms will slowly ease on their own, combined with scalp lacerations need to perform debridement suturing. If there is intracranial hemorrhage or skull fracture, the patient should be hospitalized. If the bleeding volume is small, conservative treatment such as hemostasis and dehydration can be given, but if the bleeding volume is large, the bleeding volume of cerebral hemisphere is more than 30ml, and the bleeding volume of cerebellar hemisphere is more than 10ml, craniotomy is needed.