Small ischemic foci are partially not cerebral infarcts, but are a manifestation of pre-infarction, a response to cerebral atherosclerosis. Patients with a history of hyperlipidemia, diabetes mellitus and hypertension at age >50 years old may mostly have small ischemic foci in the brain during cranial MRI examination, which can be without any clinical symptoms and signs, or they may have symptoms of transient ischemic attack. The main thing is to control the high-risk factors, including controlling the patient’s blood lipids, blood sugar and blood pressure, and also to improve the diet with low salt, low fat and low sugar, quit smoking and avoid alcohol, and exercise appropriately to control the weight. If necessary, apply anti-platelet aggregation drugs, such as oral aspirin or clopidogrel, and also use drugs that activate blood circulation, such as oral ginkgo biloba drops and salvia tablets, to improve blood circulation. If the patient has cerebral ridge congestion, which is a manifestation of ischemic and hypoxic necrosis and softening in the brain, he or she should be mainly hospitalized for comprehensive treatment.