Permanent pacemakers are divided into single-chamber pacemakers and dual-chamber pacemakers. Generally, single-chamber pacemakers are used for 6-8 years and dual-chamber pacemakers for 8-10 years, which refers to normal conditions. Pacemakers are magnetic machines and their use varies depending on the underlying condition of the patient. Some people who have a pacemaker use it every minute of the day and need it to work. In this case, it is 6-8 years for a single-chamber and 8-10 years for a dual-chamber. In addition, pacemakers are magnetic instruments, which are easily disturbed by magnetic fields. Patients with pacemakers accidentally exposed to strong magnetic fields can cause patient discomfort, pacemaker abnormalities, etc. This is considered abnormal use. Therefore, the normal and abnormal use of pacemakers is based on the patient’s condition, and places with magnetic fields should be avoided. At present, the standard of living is better and there are more small appliances, so pacemaker patients do not need to worry about the use of normal appliances.