Traumatic brain injury is the leading cause of death and severe disability in young people, and its most important complication is intracranial hematoma. The incidence of intracranial hematoma ranges from 25% to 45% in heavy traumatic brain injury, 3% to 13% in medium traumatic brain injury, and 1/500 in light traumatic brain injury. without effective surgical treatment, intracranial hematoma is likely to evolve a recoverable benign clinical course into death and persistent vegetative survival, and delays in the diagnosis and treatment of intracranial hematoma can produce similar results. Post-traumatic occupying lesions are classified according to the traditional literature classification, i.e. into acute epidural hematoma, acute subdural hematoma, intracerebral parenchymal injury (cerebral contusion and intracerebral hematoma), acute posterior cranial fossa hematoma, and depressed skull fracture. Of course, most patients with severe traumatic brain injury and some patients with moderate traumatic brain injury may have more than one post-traumatic occupying lesion at the same time; for example, most patients with acute subdural hematoma are also found to have cerebral contusions on CT scan. Some patients may have multiple occupying lesions in the brain parenchyma, such as bilateral frontal lobe contusions, bilateral temporal lobe contusions, or simultaneous injury to the temporal and frontal lobes.