A cerebral infarction is a stroke. Stroke is a term used in Chinese medicine, and cerebral infarction is what Chinese medicine calls a stroke. Cerebral infarction is a common and frequent disease in neurology, an acute ischemic cerebrovascular disease that occurs mostly in middle-aged and elderly people with pre-morbid risk factors for cerebral infarction, such as hypertension, diabetes, coronary heart disease and dyslipidemia. Patients often develop the disease in a quiet state or during sleep, and some patients may have a history of transient ischemic attack before the onset of the disease. The clinical manifestations are diverse, depending on the size and location of the infarct focus, and are mainly signs and symptoms of focal neurological deficits, such as hemiparesis, hemianesthesia, aphasia, ataxia, etc. A portion of patients may have whole-brain symptoms such as headache, vomiting, coma, etc. Patients are generally conscious. If a patient has a large cerebral infarction, the condition is often severe and the patient can develop impaired consciousness or even brain herniation, which can eventually lead to the patient’s death.