First some people do not feel confident about prevention and feel that it is useless. In fact, the prevention of stroke is more important than the treatment. Because, once a stroke occurs, it is difficult to recover to the level before the onset of stroke, so it will more or less affect the life of the patient. Moreover, after a stroke, the risk of recurrence is about 9 times higher than normal, so stroke prevention is more important than treatment. The second misconception uses some health care products to replace normal means of prevention. I often hear patients in the clinic say that my daughter or son buy me some health care products. In fact, it is very harmful to use health care products to replace the regular prevention means. Because health care products are an adjunct to treatment, they should not be used as a primary means of prevention. The third type of misunderstanding is that it is easy to treat prevention as a surprise act, the most prominent manifestation in the north is regular infusion, two bottles of liquid each time, which is very harmful. This is because prevention is something lasting and should never be done by surprise, and regular infusion is more harmful than beneficial to the patient. The first is that drugs only work in the body for a relatively short period of time. The half-life of drugs is calculated either by hours or by minutes, and no drug lasts for a long time. Secondly, from the medical point of view, there is a basic principle, can be taken orally drugs are not injected, can be injected drugs are not static point, because the static point of the drug is very harmful to people. The third aspect, netizens may also find that the infusion of drugs in different hospitals are different, it is not possible to infuse any drugs are working. Fourthly all drugs have adverse reactions. Fifth, if people put all their hopes on the infusion, the usual prevention may relax, which brings more harm to the patient, do not agree with the netizens in this way. The fourth major misconception is that prevention is placed more on drugs and behavioral changes, bad habits or dietary changes are neglected. Sometimes behavioral changes alone are more effective than drugs. Therefore, prevention is a comprehensive measure and should never be pinned on a miracle drug; there is no magic pill, but rather a combination of attention, discipline, and seeking medical help. The fifth misconception is to put the prevention and treatment of stroke on the drugs advertised by various advertisements, or to omit the basic treatment. Our country has started to clean up false advertisements, and stroke advertisements are also among those being cleaned up. The basic way to identify false advertisements is very simple. In our national advertising law, there are clear provisions, prescription drugs are not allowed to advertise in front of the public, if advertised in front of the public, all the drugs are not the first choice of the doctor, not the first-line drugs, are auxiliary drugs, will never have a great therapeutic effect. First-line drugs are not allowed to be advertised in the public media, so they are advertised in the media as health products or over-the-counter drugs. The sixth misconception is that patients often ask for the “best” medicine, which is actually a one-sided understanding. For example, in patients with cerebral thrombosis, thrombolytic therapy is available within 3 to 6 hours of onset, while rehabilitation therapy gradually takes precedence at 48 hours and over time. Therefore, early access to standardized treatment becomes a key factor in determining the prognosis. And some very cheap drugs, such as a few cents an aspirin can be very good at preventing stroke, and its effect is no worse than some expensive drugs that cost tens of dollars a piece.