Intracerebral hematoma is a hematoma formed by bleeding in the brain parenchyma, which can occur anywhere in the dry brain. The frontal and temporal lobes are the most common, followed by the parietal and occipital lobes? The rest are in the basal ganglia, brainstem and cerebellum, respectively. 1, Mechanism of injury Traumatic intracerebral hematoma is mostly caused by hedgehog cranial injury, and its formation mechanism is similar to that of hedgehog cerebral contusion. Therefore, its occurrence site is also mainly located in the frontal and temporal lobes, accounting for 80% to 90% of the total. 10% to 20% of parietal or occipital hematomas are mostly caused by impact injuries or depression fractures from direct blows of violence. A small number of hematomas can be caused by intracerebral shear shear or brainstem hematomas. 30% of patients can have multiple intracerebral hematomas. Intracerebral hematoma is associated with extracerebral hematoma in 30% to 60% of all patients. The clinical manifestation of intracerebral hematoma varies according to the location, size, development speed and edema of the surrounding brain tissue. Hematomas located in the frontal and temporal lobes generally have no focal symptoms, except for the manifestation of increased intracranial pressure. If the hematoma is located in a functional area, symptoms such as hemiparesis, aphasia and focal epilepsy may occur. 3. Emergency CT scan can clarify the diagnosis. In general, acute intracerebral hematoma shows a high-density mass surrounded by a low-density edema band on CT. However, in some patients with delayed intracerebral hematoma, the CT density shows a gradual decrease with time, so the occurrence of delayed hematoma should be alerted. CT review should be performed when necessary. 4.Treatment and prognosis Patients with intracerebral hematoma with worsening of consciousness, focal symptoms, and displacement of the midline (>1 cm) on CT should have emergency surgery to remove the hematoma. In addition to surgical removal of intracerebral hematoma? The combined extracerebral hematoma and cerebral contusion should be removed together. For those with preoperative brain herniation, bone flaps may be removed as appropriate. For those with minor cerebral contusions and small intracerebral hematomas (20 mmHg), surgery is generally required. Currently, clinical observation of intracerebral hematoma changes, in addition to CT and ICP, SPECT is being increasingly emphasized. 99mTc SPECT is unique in monitoring brain tissue edema after craniocerebral injury, and a large amount of perfusion on local area SPECT often indicates deterioration. Prompt and early surgical treatment for such patients is advocated.