Cerebral infarction, also known as ischemic stroke, is a clinical syndrome in which the blood supply to the brain is impaired due to various causes, resulting in localized ischemia and hypoxic necrosis of brain tissue and corresponding neurological deficits. Cerebral infarction can include the following types: 1. Atherosclerotic thrombotic cerebral infarction: also known as cerebral thrombosis, is the most common type of cerebral infarction. It is caused by atherosclerosis, arteritis, blood hypercoagulability and other reasons that lead to the formation of cerebral thrombus, blocking the blood supply to the brain, causing cerebral tissue ischemia and cerebral infarction symptoms such as hemiparesis and speech impairment. 2.Cerebral embolism: It refers to diseases such as atrial fibrillation that causes cardiogenic emboli or fat emboli formed by fractures, tumors and other reasons, cancer emboli and other kinds of emboli enter the intracranial artery with blood flow and cause acute occlusion or severe narrowing of the vascular cavity, resulting in ischemia of the corresponding parts of the brain tissue and symptoms such as limb weakness, speech disorder and facial palsy. 3.Lacunar infarction: It refers to the small penetrating arteries in the cerebral hemispheres or deep brainstem, and on the basis of long-term hypertension and other risk factors, lesions occur in the vessel wall and eventually the lumen is occluded, resulting in ischemic necrosis of brain tissues in its blood supply area, the infarct area is small and the symptoms are usually mild, so it is called lacunar cerebral infarction. 4, In addition, cerebral infarction also includes hemorrhagic cerebral infarction, asymptomatic cerebral infarction and other unexplained cerebral infarction and other less common types of morbidity. It can be seen that cerebral infarction is a neurological dysfunctional disease such as hemiplegia, sensory impairment and unfavorable speech due to ischemia and hypoxia of brain tissue caused by different reasons.