Compared with cerebral atherosclerosis and cerebral infarction, cerebral infarction is more serious.1. Cerebral infarction is caused by cerebral atherosclerosis, which leads to thickening of the vessel wall and narrowing of the lumen, causing ischemia, hypoxia and necrosis of brain cells and brain tissues in the blood supply area after the interruption of blood flow, resulting in symptoms of neurological deficits, and if the treatment is not timely or the patient’s degree of atherosclerosis is heavy, the necrotic brain tissues and brain cells do not recover in time. Permanent brain cell death will be formed, and this part of neurons will not be recovered, and patients will show symptoms of neurological deficits clinically.2. Compared with cerebral atherosclerosis and cerebral infarction, cerebral infarction is more serious. Although the formation of cerebral infarction is directly related to cerebral arteriosclerosis, patients with cerebral arteriosclerosis will mainly manifest clinically as dizziness and dullness, and may have brain ringing and abnormal sound sensation in the brain.