In my many years of medical practice, I often encountered many patients in outpatient clinics. When asked what discomfort they felt, such as whether they had dizziness, weakness of limbs, numbness and other symptoms, the answer was always: “No”. “They wrongly believe that the recurrence of cerebral infarction can be prevented by intravenous infusion (referring to the use of vasodilators or blood-stasis-boosting drugs) at the beginning of spring and in winter every year. So can regular intravenous infusion prevent recurrence of cerebral infarction or not? This is essentially a misconception, and there is no scientific basis for this idea and practice. Because intravenous infusion is only a treatment means, it cannot solve the problem at the root. I remember that more than ten years ago I once treated a female patient suffering from hypertension and cerebral infarction, who was given two weeks of sedative treatment of blood circulation and blood stasis, and the symptoms of numbness and weakness of one of her limbs had improved significantly, but she thought it was not good enough. After being discharged from the hospital, she continued the same blood-stasis-activating drugs at home by herself for ten days, resulting in a brain hemorrhage of about 20 ml and returned to the hospital for treatment. This is an example of misuse of intravenous infusion. We know that prevention of cerebrovascular disease is divided into primary prevention and secondary prevention. Primary prevention is aimed at those people with risk factors for cerebrovascular disease, such as hypertension, hyperlipidemia, diabetes, atherosclerosis, various heart diseases and arrhythmias, hyperhomocysteinemia, etc., to delay the occurrence of cerebrovascular disease. Secondary prevention is to provide active treatment for transient ischemic attack (TIA) and people who have already suffered from cerebral infarction to interrupt the development of TIA to prevent the formation of cerebral infarction or to prevent the recurrence of cerebral infarction. In other words, we can only postpone or prevent the occurrence of cerebral infarction if we insist on grasping primary prevention and secondary prevention for a long time according to our own situation.