Cerebrovascular disease prevention is actually mainly life prevention and oral medication prevention. To control the controllable risk factors, including blood pressure, blood sugar, blood lipid control, quit smoking and alcohol, emotional stability, less oil and salt, more exercise (according to age, physical strength and other physical conditions), weight control, appropriate anti-platelet drugs such as aspirin enteric tablets, etc. can be effective prevention, which requires long-term adherence to be effective. Uncontrollable risk factors such as family genetics, age and gender cannot be intervened at present. Annual blood vessel flushing is not advocated to prevent cerebrovascular disease. Infusion therapy is short-term, and there will be no more drugs in the body after a few days of stopping the infusion, so what is the prevention for a long gap period? Moreover, sometimes the abnormal diastole of the blood vessels caused by external intervention can also cause plaque to be dislodged and rushed to the brain with the blood vessels to cause massive cerebral infarction. The medical evidence shows that there is no difference in the incidence rate between those who flush blood vessels and those who do not flush blood vessels each year, which means that flushing blood vessels has no preventive effect. Therefore, since 1997, the medical profession has not advocated annual blood vessel flushing. The prevention of atherosclerosis is like the treatment of the Yellow River, which cannot be solved by annual sand flushing. To fundamentally solve the problem of elevated Yellow River bed, we must start from the source of the Yellow River, plant trees and grasses to increase vegetation cover and reduce sediment loss. This may make it easier to understand why prevention of arteriosclerosis should start from life such as clothing, food, housing and transportation. If you feel any discomfort, you should go to the hospital in time to adhere to the treatment is. In such patients, blood tests, heart tests, neck vessels and cerebrovascular examinations should be performed to observe and find the cause of the disease, exclude heart and large vessel causes, and prevent large vessel occlusion and large cerebral infarction. Prevention is not a panacea, prevention only minimizes the chance of incidence, only for controllable factors, like genetics, age, gender and other uncontrollable factors medicine can do nothing.