In recent years, the prevalence of arrhythmias in China has been increasing, and statistics show that 80% of heart-related deaths are caused by severe arrhythmias. After suffering from this disease, many patients choose to install pacemakers. Although the number of patients with pacemakers is increasing, clinical surveys show that many patients still lack scientific understanding of this treatment method and there are great misconceptions. Myth 1: Permanent pacemakers can be used forever and do not need to be replaced. Even permanent pacemakers cannot be used permanently. Pacemakers rely on internal batteries to work and have a certain service life. After the service life, if the battery is low, it has to be replaced again surgically. Since the pacemaker is an integrated machine, the battery cannot be replaced alone, but the whole machine must be replaced together. Myth 2: Pacemakers are implanted and have to be maintained by taking medication. The pacemaker itself is a therapeutic measure and no medication is needed or available specifically to maintain the pacemaker, but the patient should actively take medication to control the original heart disease. For example, hypertension, diabetes, coronary artery disease, etc. Myth 3: Pacemaker-installed arms cannot move without doing housework. Avoid hyperextension of the shoulder joint on the implanted side for a week after pacemaker implantation, especially for 1-3 days, to avoid dislocation of the pacemaker electrodes. From 2 weeks after the operation, the implanted arm should be elevated appropriately, but excessive stretching and large arm flings should be avoided. Generally, after 3 months, you can move around normally and do some housework, which will not affect your normal life. Myth 4: You cannot take a flight when you go out. Patients with pacemakers have no problem to travel by airplane, but they may be detected when they pass the airport security gate, but it does not affect their normal travel. Patients with pacemakers with sleep mode on need to go to the hospital before traveling abroad and make the appropriate adjustments. Myth 5: It is dangerous to go out on a thunderstorm day. Thunderstorms do not affect the normal use of pacemakers. In case of strong lightning, the pacemaker will automatically adjust to a safe model.