Stroke, also known as stroke, is a generic term for acute cerebrovascular disease. According to the etiology, pathology and different manifestations of acute cerebrovascular diseases, strokes are generally divided into two categories: hemorrhagic strokes, also called hemorrhagic cerebrovascular diseases, including cerebral hemorrhage and subarachnoid hemorrhage, which account for 15% of acute cerebrovascular diseases; ischemic strokes, also called ischemic cerebrovascular diseases, including transient ischemic attack (TIA), cerebral thrombosis (cerebral infarction), cerebral embolism and lacunar cerebral infarction, which account for 85% of acute cerebrovascular diseases. and lacunar cerebral infarction, which account for 85% of acute cerebrovascular diseases.