Both cerebral hemorrhage and cerebral infarction are cerebrovascular diseases. Cerebral hemorrhage is related to hypertension combined with atherosclerosis and aneurysm, and patients can show symptoms such as slurred speech, numbness of limbs and headache, while cerebral infarction is commonly caused by atherosclerosis of large arteries and cardiogenic embolism, and symptoms such as hemiplegia, vomiting and coma can occur. The severity of both cannot be generalized and should be analyzed according to the specific conditions of the patient.1. Cerebral hemorrhage: the onset is generally acute, and after cerebral hemorrhage, 4-5 hours gradually from drowsiness, lethargy or into a coma state. The blood vessels in the brain tissue rupture and the blood enters directly into the inner brain parenchyma, forming a hematoma and compressing the brain cells, which can cause the death of brain cells or edema. If the amount of bleeding is small, the hematoma is slowly absorbed with time, edema can be gradually eliminated, and the functional disability of the patient’s limbs is less; however, if the bleeding is large, the patient develops brain herniation, which can even lead to death in severe cases; 2. Cerebral infarction: due to the blockage of blood vessels supplying blood to brain cells, brain cells are prone to necrosis due to ischemia. If it occurs in large blood vessels, such as the middle cerebral artery trunk, it may cause diffuse hematoma, cerebral thrombosis of the middle cerebral artery trunk and other conditions, i.e. malignant middle cerebral artery syndrome. If the infarct is mild, the patient does not behave seriously and the degree of sequelae is usually mild; if the infarct is severe, it may lead to brain herniation and death after 3-5 days or 7-8 days. The early mortality rate of cerebral infarction is relatively low, but the neurological disability it causes is more severe than that of cerebral hemorrhage. This is because once the brain cells die, there are irreversible consequences.