Coronary angiography of the left anterior descending branch of the proximal segment of the myocardial bridge contraction stenosis of 40%, the remaining segments do not see significant stenosis lesions do not require intervention. 1. Myocardial bridges are myocardial fibers with congenital positional abnormalities. Most of the mild myocardial bridges have no obvious clinical symptoms and generally do not require treatment. However, as the patient’s age increases, aggravation of symptoms can occur, and angina pectoris, arrhythmia or even myocardial infarction may occur. 2.. If the patient currently has no obvious clinical symptoms, no treatment is needed for the time being. If there are symptoms such as chest pain, medications such as metoprolol succinate can be used under the guidance of a doctor to relieve symptoms caused by myocardial bridges. Patients with myocardial bridges need to be reviewed regularly, and surgery may be considered if the condition is serious. Specific treatment should follow the doctor’s instructions.