Cerebral infarction is not contagious, is a common and frequent disease in neurology, and is an acute ischemic cerebrovascular disease. It occurs mostly in middle-aged and elderly people, who often have risk factors for cerebral infarction, such as hypertension, diabetes mellitus, coronary heart disease and dyslipidemia. Patients often start the disease in a quiet state or during sleep, and in some cases, transient ischemic attacks may precede the onset of the disease. Clinical manifestations are varied, depending on the size of the infarct and the location of the infarct, and are mainly signs and symptoms of focal neurologic deficits, such as hemiparesis, hemiplegia, aphasia, ataxia, etc. Some patients may have headache, vomiting, and other symptoms. Some patients may have whole-brain symptoms such as headache, vomiting, and coma, and patients are usually conscious. If the patient develops basilar artery thrombosis or large cerebral infarction, the condition is so severe that he or she can develop impaired consciousness, or even have brain hernia formation, which, ultimately, leads to the patient’s death.