Pacemaker is a high precision instrument. In order to ensure that the pacemaker works normally after installation, patients should pay attention to the following matters: 1. When performing dynamic ECG or ECG monitoring, please do not apply the electrode piece to the pacemaker capsule, and do not scratch the affected area to avoid local skin ulceration and infection. If there is any fever, pain, redness, swelling or fluid outflow from the wound or the capsule, please seek medical attention promptly. 2. Do not perform significant activities on the upper limb of the implanted side of the pacemaker for the first 2-3 months after the pacemaker is installed to prevent dislocation of the catheter electrode before it is firmly embedded. 3. The pacemaker should not be collided with hard objects, otherwise the pacemaker may be damaged and lose its normal function. In general, a programmed commissioning should be done 3 months after the installation to understand the working condition of the pacemaker and keep it in the best working condition. In the future, the pacemaker can be reviewed once every six months to one year. 5. Physical activity should be moderate. After the pacemaker is installed, the pumping function of the heart is improved, so the patient can engage in daily work and household activities appropriately. Physical exercise should be done according to ability. You can choose general intensity activities such as walking, jogging and qigong practice. 6.Adhere to the necessary medication. Patients with pacemakers mostly suffer from coronary heart disease, hypertension and other diseases, and the treatment of the original disease should not be neglected after the installation of pacemakers. In fact, patients with pacemakers can also suffer from angina pectoris, myocardial infarction and heart failure. Therefore, patients should not be paralyzed and should still take medication for the original disease as prescribed by the doctor. 7. Avoid interference with pacemaker function by external factors. The pacemaker is a fine electronic device, and its working performance can be disturbed by strong magnetic fields and currents. Therefore, such patients are forbidden to enter strong magnetic fields, TV and radio transmitting stations, radar areas, substations, and places with arc light welding to avoid interference with the work of the pacemaker. Patients are also not allowed to undergo examinations and treatments that affect the function of the pacemaker, such as MRI, electrothermal therapy, magnetic therapy, etc. Surgical electric knife, cardiac defibrillator, impact lithotripter, transcutaneous electrical stimulation protocol, etc. may affect the work of the pacemaker, so you should inform the physician about the installation of the pacemaker before treatment. 8. You should carry and keep your pacemaker implantation card with you so that in case of emergency the medical staff can quickly understand your information and make the correct judgment and treatment. You should show it to prove it when going through airport security. 9. The battery of the pacemaker has a certain life span, and the number of follow-up visits should be increased from one year before the guarantee period so that the battery will be depleted and the pacemaker will be replaced in time, otherwise some patients will have accidents due to the loss of pacemaker function. Daily life care: 1. Maintain a good life routine, change bad habits, quit smoking and drinking, and do not eat too much. Keep a stable and good mood, pay attention to psychological balance and ensure sufficient sleep; 2. primary disease; 5. Pacemakers themselves are not affected by diet, so moderate alcohol consumption does not affect pacemakers. Other electrical appliances: TV, radio, vacuum cleaner, hair dryer, iron, washing machine, microwave oven, electric blanket, fax machine, copy machine, stereo, headphones, computer, refrigerator, electric stove, etc. 2.Appliances that will be affected by proximity: cell phones, high-power walkie-talkies, welding machines, metal detectors, hand-held electric drill machines, etc. 3.Appliances that cannot be approached: high-voltage equipment, large motors, generators, broadcasting antennas, equipment with strong magnetic fields, etc.