40 years old cerebral infarction, if a small area of radiocoronal cerebral infarction, clinical symptoms and signs are mild, most of the symptoms and signs of focal neurological deficits are predominant. The patient has no consciousness disorder, no cerebral edema, the clinical treatment effect is better, most of them can be clinically cured by active and correct treatment, and generally can be cured. In case of large hemispheric infarction and brainstem infarction, the clinical symptoms and signs of the patients are more serious, and hemiparesis, hemianopsia, hemianopsia, hemiplegia, hemianopic sensory disorder, bulbar palsy and quadriplegia can also occur, and severe cases can cause consciousness disorders, such as lethargy, lethargy or coma. Patients have cerebral edema, increased intracranial pressure, and in severe cases of increased intracranial pressure can cause cerebral herniation, which can directly lead to the patient’s death. In addition, patients with massive cerebral infarction can also have co-morbidities such as pneumonia and urinary tract infections due to prolonged bed rest. Some patients may also develop acute upper gastrointestinal bleeding. When patients have comorbidities, the treatment is generally ineffective, and the mortality and disability rates are high.