Precordial tremor is a slight tremor in the precordial area that can be touched by hand or stethoscope. The cause of the tremor should be clarified before appropriate treatment is carried out. Precordial tremor is generally caused by the heart blood flow through the narrow caliber or the direction of blood flow abnormal formation of eddy current caused by the valves, blood vessels or the heart cavity vibration to the chest wall, most commonly seen in cardiac organic lesions, such as congenital cardiovascular disease or stenotic valvular lesions. After palpable precordial fibrillation, one should consult a cardiovascular physician, who will conduct echocardiography, electrocardiography, or other relevant examinations to determine the location, nature, and severity of the lesion, and to find out whether there are any defects in the heart’s valves, the structure of the large blood vessels, or the ventricular septum; and finally, to make a comprehensive diagnosis and provide treatment according to the results of the examination. Regardless of whether there are clinical symptoms or not, it is recommended to go to a regular hospital as soon as possible to avoid delaying the condition and causing serious consequences.