Stents and pacemakers are applied to different diseases with different risks and cannot be compared for judgment. Specific use needs to be carried out in accordance with the doctor’s prescription. 1. Stents: Stents are used to treat myocardial ischemia caused by coronary artery stenosis, to improve the blood supply to the heart muscle and to relieve angina symptoms. The risks of stenting include complications such as thrombosis and restenosis within the stent, and long-term oral anticoagulant medication such as clopidogrel is required to prevent thrombosis. 2. Pacemaker: Pacemakers are mainly used to treat bradycardia and help the heart return to a normal heart rate. Pacemakers may bleed and have coronary artery spasm during implantation, and may have complications such as infection and thrombosis after implantation. Therefore, both stents and pacemakers have different degrees of risk, and you need to choose a suitable treatment plan for yourself under the guidance of your doctor and in conjunction with your own condition.