The causes of cerebral infarction include: 1, atherosclerosis, mostly caused by fat deposition in the vessel wall; 2, cardiogenic cerebral thrombosis: for example, patients with atrial fibrillation are prone to the formation of thrombus, which flows into the brain and blocks the cerebral vessels, causing cerebral infarction; 3, fat emboli and gas emboli blocking the vessels; 4, immune abnormalities triggering arteritis; 5, special types of infections, such as leptospirosis, tuberculosis, syphilis, prone to vascular inflammation, leading to cerebral infarction; 6, coagulation disorders; 7, congenital developmental abnormalities, such as myofibrillar dysplasia; 8, intima injury and rupture of blood vessels, causing blood to enter the vessel wall and form stenosis; 9, drug factors; 10, tumors.