The incidence of coronary heart disease is rising and getting younger year by year. Stent treatment has the advantages of good effect, small trauma, fast recovery and repeatability, which makes the life channel on the verge of blockage flow with life blood again, and brings new life to many patients with coronary heart disease, but we should pay attention to the following several misunderstandings! Myth 1: The more stents, the better Stent surgery is operated within the blood vessels, where localized lesions occur in the blood vessels, they can be treated with stents, and should not be calculated by the number of stents. However, stent treatment is, after all, more expensive. Generally speaking, the treatment cost of more than 3 stents is greater than that of cardiac surgical bypass surgery. For some patients with many lesions and complex lesions, stenting can often not be completed at one time and needs to be done in stages. The more stents there are, the greater the chance of stent restenosis will be. Myth 2: Stent is the only choice Stent surgery is developing rapidly, and some lesions that were not suitable or able to be treated with stent in the past are becoming the new direction of stent treatment research. However, any technology has its own advantages and defects, and patients have their own special conditions. When choosing a treatment method, you must combine it with your own situation and make a comprehensive and scientific judgment, and you cannot accept or reject stent surgery completely. Myth 3: Stent life can not be permanent Some patients are worried about the service life of cardiac stents, which is actually unnecessary. Currently, stents are made of medical metal materials. Before release, the stent is wrapped around a special balloon, and during the release process, it is necessary to open the balloon with greater tension so that the stent is tightly combined with the vessel wall and set into the vessel wall, so the stent is lifelong in vivo and safe. Even if stenosis reappears in this area, balloon dilatation and placement of the stent can be performed again in this area.