Lateral lacunar cerebral infarction in the left basal ganglia region is not serious. Patients with aging, cerebral arteriosclerosis, may usually have hypertension, hyperlipidemia, diabetes mellitus and other factors lead to the continuous aggravation of cerebral arteriosclerosis, so that the plaque in the blood vessels gradually increases, eventually leading to the narrowing and occlusion of the lumen, resulting in the ischemia and hypoxia of brain tissue, and the formation of a small infarct in the basal ganglia area, it is called lacunar cerebral infarction of the left basal ganglia area. Generally, there will be no serious symptoms, and there will be no problems such as unfavorable limb movement, partial body numbness, or clumsy speech. However, if lacunar cerebral infarction in the basal ganglia region occurs repeatedly, patients will experience changes in cerebral ischemia and hypoxia, which will lead to headache and dizziness. It is necessary to start secondary prevention of cerebrovascular disease, actively control blood pressure, blood sugar and blood lipids, and take oral aspirin to prevent platelet aggregation and prevent the recurrence of cerebral infarction.