Cerebral hemorrhage and cerebral infarction are both more serious acute cerebrovascular diseases, and the severity is related to the location and size of the brain tissue lesion. In most cases, cerebral hemorrhage is relatively more disabling and lethal. Cerebral hemorrhage and cerebral infarction, if occurring in important areas, such as the brain stem, can affect consciousness, breathing, and at any time, respiratory and cardiac arrest and life-threatening. If the lesion is large, it can lead to cerebral edema and brain herniation, which can be life-threatening at any time. The most common type of stroke is ischemic stroke, but hemorrhagic stroke has a higher rate of disability and death. Both ischemic and hemorrhagic strokes can be disabling and life-threatening, so it is important to seek prompt medical attention when acute cerebrovascular disease occurs.