Symptoms of left anterior descending myocardial bridge usually have no clinical symptoms, but some patients also have chest tightness, chest pain or accelerated heart rate. 1. Chest tightness: Due to the delayed systolic vascular pressure and diastolic vasodilatation, the coronary blood flow may be affected, leading to the phenomenon of chest tightness. 2. Chest pain: Myocardial bridge is a congenital vascular malformation. When a segment of coronary artery is surrounded by myocardium, this segment of myocardium is called myocardial bridge. If the patient’s congenital development is abnormal, part of the blood vessels supplying the heart appear in the muscle layer. When the ventricles beat, contraction causes occlusion of the corresponding vessels. Insufficient blood supply to the patient’s heart muscle may lead to chest pain. 3. Accelerated heart rate: due to overuse of the heart reserve will lead to rapid contraction of the myocardium, myocardial bridges will lead to coronary artery pressure, which may easily induce angina pectoris and accelerated heart rate phenomenon. It is recommended to consult a doctor in time for relevant examinations, according to the specific circumstances, under the guidance of the doctor, symptomatic treatment.