Small ischemic foci in the left basal ganglia region are usually found when the patient has a CT or MRI of the head. Most patients do not have obvious symptoms clinically, but when this problem occurs, patients must pay attention to it and strictly control hypertension, hyperglycemia, and hyperlipidemia, as well as a regular low-salt, low-fat diet. If the patient has high blood lipids, the blood is in a high-fat, high-viscosity state, then oral atorvastatin or resorvastatin should be taken to reduce blood lipids and stabilize the endothelium, and it is recommended that the patient take oral aspirin or poliovel to prevent platelet aggregation, which can prevent the increase of small ischemic foci in the brain and improve the blood supply to the brain.