In mild cerebral infarction, the neurological function of most patients can be fully recovered, while a few patients will be accompanied by different degrees of neurological dysfunction. Cerebral infarction refers to the clinical syndrome of ischemia and necrosis of brain tissues, followed by neurological deficits due to various reasons of blood supply to the brain. Generally speaking, the ischemic and necrotic brain tissue cannot be restored to normal, but the body can establish collateral circulation by itself, and if the area of cerebral infarction is small and not in the important functional position, most of the patients’ neurological function will be completely restored without any after-effects. Cerebral infarction is mostly caused by hypertension, diabetes mellitus, hyperlipidemia and other underlying diseases, in order to prevent cerebral infarction, we should control the risk factors that lead to atherosclerosis, such as quitting smoking and restricting alcohol, eating less oily food, eating less salt, and exercising appropriately. During the recovery period of mild cerebral infarction, it is necessary to control the underlying diseases, take anti-platelet aggregation drugs, and review the condition regularly under the guidance of the doctor. If the condition changes, consult the doctor in time.