Stroke is clinically known as stroke, which is a cerebrovascular lesion, including ischemic cerebrovascular disease and hemorrhagic cerebrovascular disease, ischemic cerebrovascular disease including acute cerebral infarction, transient ischemic attack, hemorrhagic cerebrovascular disease including cerebral hemorrhage, subarachnoid hemorrhage. Some patients with symptoms of stroke should also consider the possibility of intracranial occupying lesions. Patients suspected of having stroke should go to the hospital to perform cranial CT examination in time to quickly identify ischemic cerebrovascular disease and hemorrhagic cerebrovascular disease. In early ischemic cerebrovascular disease, the site of infarction cannot be seen on cranial CT, so further cranial magnetic resonance examination is needed, and cranial magnetic resonance DWI examination can detect early cerebral infarction. For hemorrhagic cerebrovascular disease, the condition needs to be evaluated. If the hemorrhage is small, the patient can continue treatment in neurology, but if the hemorrhage is large, the patient needs to be transferred to neurosurgery.