The risk of recurrence in patients with cerebral infarction is usually more serious than that of the initial attack, with increased mental disorders, hemiparesis and aphasia, which may increase the rate of disability, mortality and poor prognosis. Some studies have shown that the risk factors for recurrence in patients with cerebral infarction include diabetes mellitus, hyperlipidemia and hypertension. Diabetic patients have high glucose within the plasma, which makes the plasma osmotic pressure too large, and hypertension makes the endothelium of the blood vessels under greater pressure, which damages the endothelium of the blood vessels, resulting in cerebral ischemia, and eventually cerebral infarction. Actively treating or controlling these intervenable risk factors is of great significance in preventing the recurrence of cerebral infarction. Patients with cerebral infarction should focus on strengthening the control of blood pressure and blood glucose, and at the same time, change the bad life habits, and consult the professional physician for specific advice.