After the head is smashed, there may be the following sequelae: 1, cranial defect, cranial defect is mainly due to the formation of intracranial hematoma after the head is smashed, surgery for control and relief of the condition requires craniotomy. If the cranial defect is larger than 3cm, cranial repair surgery is required.2, traumatic epilepsy, if the head injury is relatively heavy, it may be due to the formation of late brain tissue scarring leading to abnormal discharge, thus forming traumatic epilepsy, the treatment is mainly to take medication as the main.3, post-traumatic brain injury syndrome, some patients after the injury may continue to exist after the headache, dizziness, insomnia, dreamy, anxiety and other symptoms of vegetative nerve function disorders, the treatment is mainly to take medication as the main treatment. The treatment is mainly based on the treatment of symptoms of vegetative nervous system dysfunction. 4, intelligence damage, intelligence damage is mainly due to the brain dysfunction caused by heavy nerve damage in the head, and the treatment is mainly based on early rehabilitation therapy.