The high-risk groups of cerebral infarction include: 1. Patients with atherosclerosis: they are the high-risk group of cerebral infarction; 2. The three high groups: they include patients with hypertension, diabetes and hyperlipidemia. Among them, hypertensive patients with long-term vascular spasm are prone to damage the endothelium of blood vessels and fat deposition to form atherosclerosis. And diabetic patients with high blood sugar levels can promote cholesterol synthesis and increase blood coagulation; 3, patients with heart disease: some patients with arrhythmias, such as atrial fibrillation, fibrillation is easy to form blood clots; 4, people with bad habits: long-term smoking, drinking, exercise less; 5, others: older people or people with genetic diseases.