Cerebrovascular burst refers to cerebral hemorrhage caused by acute rupture of cerebral blood vessels. If the cerebrovascular rupture is not treated in time, the bleeding volume may increase, and the condition may be aggravated by rebleeding at any time, and the mortality rate of patients in the acute stage is high. Whether the condition of cerebral hemorrhage is critical is related to the size and location of the bleeding volume. The danger period is mainly concentrated in the following nodes: 24 hours: the risk of rebleeding is higher in the first 24 hours of cerebral hemorrhage, during which the patient’s life is often endangered by rebleeding, so vigilance should be raised and CT should be reviewed immediately when there is a change in condition, and surgical treatment should be considered if necessary. Brain edema period: Brain edema caused by cerebral hemorrhage is the main factor that aggravates brain function damage. Generally, brain edema peaks 4-7 days after hemorrhage, and patients with severe disease will take about 2 weeks to completely pass the peak brain edema period. During this time, although the bleeding basically stops, the patient’s symptoms will gradually worsen as the cerebral edema worsens, and may even be life-threatening at any time. In some patients, the condition is basically stable after conservative treatment at the early stage of cerebral hemorrhage, but the condition turns to be aggravated again during the peak edema period, and cannot be relieved by increasing dehydration treatment, at which time surgical treatment should also be considered. Complication period: After 2 weeks of cerebral hemorrhage, most patients have basically passed the danger period, however, for patients with massive bleeding and severe coma, although the peak edema period has passed, a series of complications such as pneumonia, stress ulcer, lower limb venous thrombosis and pulmonary embolism, renal failure and continuous status epilepticus may still endanger patients’ lives at any time. Therefore, the prognosis and life expectancy of cerebral hemorrhage are affected by many factors. Patients should be promptly consulted when cerebrovascular rupture is suspected, closely observed for changes in vital signs during the acute phase, and promptly reviewed for head CT in the event of sudden changes in the patient’s condition, in order to obtain the best treatment time for the patient.