Once a patient has neurological symptoms, such as slurred speech, numbness and weakness of the lateral limbs, severe headache and dizziness, he or she must go to the hospital in time to have a CT examination of the head to determine whether the patient is suffering from cerebral infarction or cerebral hemorrhage as soon as possible. However, the causes of infarction and hemorrhage are different. Cerebral infarction is generally due to atherosclerosis; the highest incidence of cerebral hemorrhage is due to hypertension, and other causes such as cerebral aneurysm or vascular malformation can lead to cerebral hemorrhage. In addition, trauma to the head can also lead to bleeding in the brain, so patients should be treated early once they develop neurological symptoms. In case of infarction, early thrombolytic therapy can be considered, while others can consider zinc-lowering and anti-platelet aggregation therapy. In the case of cerebral hemorrhage, early treatment is mainly to stop bleeding and control cerebral edema, and if it is serious, surgical treatment can be considered.