Cerebral infarction suddenly returns to normal after one year, usually because the degree of infarction is mild, and the brain function gradually compensates and returns to the normal function level. For mild cerebral infarction, if the patient is young, has healthy living habits, regularly adjusts diet and gradually improves collateral circulation, he/she can gradually return to normal by actively carrying out rehabilitation treatment. Therefore, for patients after cerebral infarction, it is generally recommended to promote recovery through secondary prevention, self-adjustment of diet and appropriate rehabilitation training. After the patients have recovered from cerebral infarction, they need to undergo regular vascular checkups and actively follow the doctor’s instructions to carry out secondary prevention, so as to reduce the chance of recurrence of cerebral infarction.