It is incorrect to say that “a brain infarction will be fine if it does not recur for a few years”. Brain infarction is characterized by high recurrence. There will be permanent residual lesions on imaging after cerebral infarction, and some patients may have some sequelae left behind. Moreover, based on the possible existence of various cerebrovascular disease risk factors and vascular conditions, etc., patients may still have the possibility of recurrence if they do not pay attention to controlling the risk factors. For patients who have had cerebral infarction, all intervenable risk factors present in the patient should be treated to reduce the risk of recurrence of cerebral infarction, such as applying appropriate antihypertensive drugs, hypoglycemic drugs and lipid-lowering drugs under the guidance of doctors, among which lipid-lowering drugs are usually applied to statins. Patients with severe carotid artery stenosis should be treated surgically if necessary. The combination of folic acid, vitamin B6 and vitamin B12 is chosen for homocysteine lowering, and the medication is adjusted by regular review. For non-cardiogenic causes of cerebral infarction, patients are advised to apply anti-platelet aggregation drugs to prevent recurrence of cerebral infarction, mainly including aspirin, clopidogrel, cilostazol, etc. For patients with cerebral infarction with persistent atrial fibrillation, anticoagulant drugs are often used to prevent re-embolism, and the commonly used oral anticoagulant drug is warfarin, which requires INR monitoring (control at 2.0~3.0). The medication should be adjusted promptly. In conclusion, cerebral infarction does not heal on its own, but only prevents recurrence. Prevention of cerebral infarction should develop individualized health education programs for different risk factors, establish a reasonable lifestyle, such as quitting smoking, reducing alcohol intake, eating a reasonable diet based on the principle of consuming foods low in fat and rich in high-quality protein, carbohydrates, vitamins and trace elements, exercising appropriately, regular medical checkups for high-risk patients, and adhering to medication.