CT reports that the patient has a large cerebral infarction, the condition is serious, will not be able to move freely, the need for timely treatment, mainly to control intracranial pressure, reduce cerebral edema, to avoid the formation of cerebral hernia. After the formation of cerebral infarction patients due to prolonged ischemia and hypoxia, resulting in brain tissue destruction, brain swelling, clinical often use mannitol for dehydration to reduce intracranial pressure, to protect the normal brain tissue from further damage. After the above treatment, the patient’s intracranial pressure still can’t be effectively solved, in order to save the patient’s life, it is necessary to consider emergency craniotomy and decompression therapy, postoperative strengthening of dehydration, and active prevention of complications treatment. Patients with massive cerebral infarction are generally in serious condition, accompanied by coma and other symptoms, which may be life-threatening and require timely treatment. It is recommended that patients should consult the doctor in time if they feel unwell, and should not be negligent so as not to delay the condition.