Cerebral infarction, now known as cerebral infarction, is a clinical syndrome in which the blood supply to the brain is impaired for various reasons, leading to ischemia and hypoxic necrosis of local brain tissues and corresponding neurological deficits. The symptoms of cerebral infarction are directly related to the size and location of the infarction, and the treatment measures vary with the duration of the onset of the disease. In terms of clinical symptoms, large cerebral infarction is characterized by paralysis of the upper and lower limbs on the opposite side of the lesion, impaired sensation on the side of the body and loss of vision on the side of the lesion (hemianopsia), which is often accompanied by symptoms of cranial hypertension, such as headache and vomiting, and even cerebral herniation, which is life-threatening. If brainstem infarction occurs, there may be impaired consciousness, quadriplegia, facial and tongue paralysis, slurred speech and other clinical manifestations, which may be accompanied by headache and cerebral hernia. In the case of cerebellar infarction, dizziness, vomiting, unsteady walking and slurred speech may occur. In addition, if lacunar cerebral infarction occurs, due to the small infarct foci, the clinical symptoms of patients are milder, and some patients may have no obvious symptoms. In terms of treatment, it mainly includes acute phase treatment and recovery phase treatment. Acute phase generally refers to the onset of the disease within 2 weeks, at this time the general treatment is mainly symptomatic treatment, including control of blood pressure, blood glucose and prevention of infections, maintenance of water-electrolyte balance and so on. Special treatment mainly includes thrombolytic therapy in the hyperacute phase; anti-platelet aggregation therapy with aspirin or clopidogrel; and brain protection therapy with edaravone, olaxetan and other drugs. The treatment in the recovery period is mainly to regulate the lifestyle and add aspirin and statin drugs to control and prevent cerebrovascular disease according to the condition. In addition, patients with sequelae of cerebral infarction should also be treated with rehabilitation training. Therefore, the symptoms and treatment of cerebral infarction depend on the location, size and time of onset of the disease, and should be individualized for patients.