Installing stents for coronary heart disease has the advantages of expanding blood vessels and improving chest tightness; the disadvantages include the need for long-term medication and the reoccurrence of occlusion after the operation. 1. Advantages: it can expand blood vessels and relieve stenosis or occlusion; improve patients’ quality of life and activity tolerance; effectively relieve symptoms of chest tightness and so on. 2. Disadvantages: after stenting, there is a possibility of restenosis and occlusion of blood vessels at the stent; after stenting, patients need to take anticoagulants for a long period of time to prevent blockage of the stent, and there is a risk of gastrointestinal bleeding or nosebleed and other bleeding; it is a kind of invasive operation, and the blood vessels may be damaged when it is not operated properly. Coronary heart disease stenting is an interventional procedure, which carries certain risks, so the decision should be made after carefully weighing the pros and cons. Lastly, regardless of whether or not to put a stent, you should go to the hospital regularly for follow-ups and medication, and consult the doctor whenever you feel unwell.