Under normal circumstances, the coronary arteries travel in the fatty tissue on the epicardial surface, but sometimes a segment of them travels in the myocardial fibers, and then they emerge superficially to the myocardial surface and are covered by myocardial fibers shaped like a bridge. This myocardial fiber bundle covering the coronary artery on the surface of the heart is called a myocardial bridge, while the coronary artery that travels under the myocardial bridge is called a wall coronary artery. Myocardial bridges and wall coronary arteries are variations of the normal congenital anatomy of the coronary arteries. It usually occurs in the left anterior descending branch of the coronary artery and occasionally in the right coronary artery. It was previously thought that myocardial bridges were normal benign anatomical variants of the coronary arteries and did not cause cardiac events. It is now believed that myocardial bridges can lead to pathophysiological changes in specific situations with varying degrees of coronary ischemia. Some myocardial bridges severely compress the wall coronary arteries during systole, reducing coronary blood flow and inducing coronary artery spasm, which can lead to arrhythmias, heart failure, acute myocardial infarction, and even sudden death in severe cases. At present, the diagnosis of myocardial bridges is mainly made by coronary angiography. Myocardial bridges are currently treated satisfactorily: treatment is only considered for those with clinical symptoms. Drugs can be given beta-blockers, calcium antagonists, etc., while patients with severe clinical symptoms and poor results of drug therapy can be treated surgically.