Cerebral infarction is now called cerebral infarction, also known as ischemic stroke, is a type of clinical syndrome in which various causes lead to impaired blood supply to the brain, resulting in local ischemia and hypoxic necrosis of brain tissue, and corresponding neurological deficits. The specific causes of cerebral infarction can be divided into the following: 1. Vascular diseases: atherosclerosis is the main cause of cerebral infarction, atherosclerotic plaque rupture, the formation of emboli embolism distal cerebral arteries, causing cerebral tissue ischemia and cerebral infarction. Arterial inflammatory diseases, cerebral artery malformation or arterial entrapment and other vascular diseases can also cause local cerebral tissue blood supply obstruction, resulting in cerebral infarction. 2, cardiac diseases: Most of the diseases that can produce cardiogenic emboli can cause cerebral embolism, such as atrial fibrillation, endocarditis, mitral valve prolapse and artificial heart valves, etc. The above diseases can cause the formation of emboli can block cerebral blood vessels with blood circulation, causing cerebral tissue ischemia and cerebral infarction. 3, blood diseases: such as thrombocytosis, erythrocytosis, leukocytosis and blood hypercoagulability can affect the human blood circulation, easily produce blood 2 stasis, thrombosis and other obstruction of cerebral vessels, causing ischemic infarction disease. In summary, the common causes of cerebral infarction include vascular diseases, cardiac diseases and blood diseases, etc. Patients with cerebral infarction should receive timely medical consultation and carry out targeted treatment after combining medical history, accompanying symptoms and relevant auxiliary examinations to clarify the causes.