Choledochal duct stones 0.6 cm usually do not cause left chest pain, but if the stone is in acute attack, there may be a bile-cardiac reflex that leads to left chest pain. In addition, if the patient has abnormal cardiopulmonary function, etc., left heart pain may also occur. 1. Presence of bile heart reflex: If there is an acute attack of gallbladder duct stones, it will also cause cardiac abnormality and left chest pain and other manifestations, which usually occurs when there is an acute attack of stones. If the symptoms of stones are relieved, the heart symptoms can also be effectively relieved, and there is no obvious abnormality in the corresponding cardiopulmonary examination. 2. Combined with other diseases of cardiopulmonary function: if the patient has gallbladder duct stones 0.6cm, accompanied by certain cardiopulmonary function abnormalities, including coronary artery disease, angina pectoris, pneumonia, respiratory insufficiency, may cause left chest pain and other symptoms. If the patient suffers from gallbladder duct stones, accompanied by symptoms of left chest pain, it is recommended to consult a doctor in a timely manner, under the guidance of the doctor, improve the relevant examination, clarify the cause of the disease, standardize the treatment.