In general, cardiovascular stenosis is due to atherosclerotic plaque formation and is irreversible. Therefore 90% of cardiovascular stenosis cannot be recovered. In clinical practice, cardiovascular stenosis is commonly seen in patients with coronary artery disease. Atheromatous plaque is formed due to arterial endothelial damage, lipid deposition on the surface of the damaged vascular endothelium, and this plaque cannot disappear once formed. As lipids continue to be deposited, the plaque grows larger, the obstruction of the blood vessel gradually increases, and the degree of stenosis increases, a process that is irreversible. For patients with stenosis, statin lipid-lowering drugs should be taken regularly under the guidance of a doctor to slow down the development of plaque, stabilize plaque, and prevent plaque rupture to produce intra-plaque thrombosis. In addition, for patients with severe stenosis, interventional surgery can be performed to place stents to improve myocardial blood supply to relieve symptoms and prolong survival.