The feeling of vibration on the left side of the chest is usually related to physiological factors, viral myocarditis, coronary heart disease and other factors. 1. Physiological factors: for example, strenuous exercise, drinking alcohol, or too much emotional excitement, anxiety, nervousness, will lead to rapid heartbeat, easy to cause chest vibration. 2. Viral myocarditis: mainly due to infection with viruses, resulting in myocardial lesions, which can cause heart failure, sudden death, resulting in arrhythmia, thus causing chest vibration. 3. Coronary heart disease: that is, coronary atherosclerotic heart disease, usually associated with coronary artery lumen narrowing, or due to coronary artery occlusion. Patients will experience symptoms such as chest tightness, chest pain and rapid heartbeat. The feeling of vibration on the left side of the chest may be related to rheumatic heart disease, hypertensive heart disease, hyperthyroidism and other factors, in addition to the above factors. It is recommended to observe for a period of time, and if it is prolonged, ECG and cardiac ultrasound should be done in time to analyze the cause of the disease and then treat it.