There are mild and severe cerebral infarction conditions, and after cerebral infarction, there will be permanent residual lesions on imaging and some symptoms of neurological deficits may remain due to the non-regenerative nature of nerve cells, which we call sequelae, but overall it is still preventable and treatable. The severity and prognosis of patients with cerebral infarction are related to the site of cerebral infarction, whether it affects the corresponding functional area, the size of the infarct, the patient’s vascular condition, and whether the patient has risk factors such as hypertension, diabetes, coronary heart disease, atrial fibrillation, and a history of smoking and alcohol consumption. Generally speaking, for lacunar cerebral infarction with very small area, cerebral infarction with no severe stenosis of large blood vessels, and cerebral infarction with few risk factors and mild symptoms, patients can only have symptoms such as crooked mouth and tongue, hemiplegia, unfavorable speech, etc. As long as they take the corresponding therapeutic drugs as prescribed by the doctor and control the risk factors, they can take care of themselves and even leave no sequelae at all. If the area of cerebral infarction is large, the symptoms are progressively aggravated, the patient is comatose or the respiratory and circulatory center of the medulla oblongata is affected, the patient’s risk of death will be increased. In addition, cerebral infarction itself does not necessarily lead directly to the death of the patient; if the patient has severe hemiplegia and needs to be bedridden for a long period of time, the patient’s life may be endangered by complications such as pulmonary infections, urinary tract infections, and decubitus ulcers, so comprehensive treatment and care of patients with severe cerebral infarction is very important and is the key to reducing death. The treatment of revascularization should be carried out as early as possible during the acute stage of cerebral infarction to improve the blood supply to the ischemic area by means of restoring blood flow and achieve the purpose of saving brain cells. At present, there are various treatment methods, such as intravenous thrombolysis, arterial thrombus retrieval, arterial thrombolysis, etc. Moreover, due to the progress of technology, endovascular treatment techniques are gradually improved, and the occluded blood vessels can be recanalized within a short period of time to preserve the neurological function to the maximum extent and achieve a good therapeutic effect. After passing the acute phase of cerebral infarction, targeted preventive treatment should be carried out according to the cause of cerebral infarction in order to prevent recurrence of cerebral infarction, which is also an important aspect to achieve the purpose of cure. For patients with sequelae, along with drug treatment, rehabilitation treatment should be carried out to restore the patient’s motor and self-care ability, and pay attention to the patient’s psychological state to promote the patient’s return to the family and society, so as to achieve the purpose of functionally curing cerebral infarction. In conclusion, the condition of cerebral infarction varies in severity, and the treatment effect cannot be generalized. Most patients can reach the standard of clinical cure through active treatment and prevention, but they should adhere to the corresponding medications as prescribed by the doctor, control the risk factors, and maintain a good state of mind to prevent recurrence of cerebral infarction.