A pacemaker, an instrument used to treat slow arrhythmia diseases, causes the heart muscle to contract regularly by stimulating it. Patients with pacemakers do not affect their life expectancy and can live until natural death, because a pacemaker is an instrument that is carried inside the patient’s body for life, and a problem with the pacemaker can lead to death instead. The pacemaker pulse generator is depleted and needs to be checked regularly. After the pacemaker is installed, one should measure one’s pulse frequently, either in the morning, or after sitting quietly for 15 minutes each day. In the early stage of pacemaker installation, the working state of the pacemaker and electrodes may be unstable, and this often needs to be adjusted. Within 3 months of installation, you need to go to the hospital once a month for a programmed check, and then once every six months or once a year, but it varies slightly from condition to condition and requires the guidance of a doctor.