Cerebral infarction used to be called cerebral infarction, also known as ischemic stroke, cerebral infarction, also known as ischemic stroke, refers to a variety of causes of blood supply obstruction in the brain, resulting in local cerebral tissue ischemia, hypoxia necrosis, and corresponding neurological deficits in a class of clinical syndromes. Cerebral infarction can include the following types: 1. Atherosclerotic thrombotic cerebral infarction (cerebral thrombosis): it is the most common type of cerebral infarction. It is due to atherosclerosis, arteritis, hypercoagulable state of blood and other reasons leading to the formation of cerebral thrombosis, blocking the blood supply to the brain, causing ischemia of brain tissues to appear hemiplegia, speech disorder and other symptoms of cerebral infarction. 2. Cerebral embolism: It refers to the diseases such as atrial fibrillation and other diseases leading to cardiogenic embolus or fat embolus formed by bone fracture, tumor and other reasons, cancerous embolus and other embolus entering intracranial arteries along with the blood flow to make the lumen of the blood vessel acutely occluded or severely narrowed, causing ischemia of the corresponding part of the brain tissues, and the emergence of symptoms of limb weakness, speech impediment, facial paralysis and other symptoms of the disease. 3, lacunar infarction: refers to the cerebral hemisphere or the deep brainstem of the small penetrating arteries, in the long-term high blood pressure and other risk factors, the vascular wall lesions, and ultimately the lumen of the occlusion, resulting in ischemic necrosis of the brain tissue in the area of its blood supply, the infarction area is relatively small, the symptoms are usually less severe, so it is known as lacunar cerebral infarction. In addition, cerebral infarction also includes hemorrhagic cerebral infarction, asymptomatic cerebral infarction and other cerebral infarction of unknown cause and other rare types of morbidity. To sum up, cerebral infarction is the old name of cerebral infarction, and both represent the same type of ischemic brain damage leading to brain dysfunction disease.