Smoking chest pain in the middle of the chest may be due to the existence of digestive diseases, heart disease and respiratory diseases and other reasons. 1. Digestive system diseases, if there is reflux esophagitis and other diseases, after smoking will be due to acid reflux and other reasons resulting in chest pain, there will be stomach bloating, belching and other digestive symptoms. 2. Heart disease, if there is hypertension, coronary heart disease and other cardiovascular diseases, after smoking will stimulate the blood vessels of the heart, which will lead to chest pain, which needs to be improved as soon as possible after electrocardiogram, echocardiography and other related examinations and symptomatic treatment. 3. Respiratory diseases, if there is pleurisy, bronchitis, chronic obstructive pulmonary disease, smoking will further stimulate the lungs, or aggravate the chances of infection, which will lead to chest pain, which need to improve the chest CT, to clarify the cause of the disease. If you are a smoker and have pain in the middle of your chest, it is advisable to quit smoking, and if you have pain in the middle of your chest again and again, it is advisable to consult a doctor in a timely manner to determine the cause of the pain and cooperate with the doctor for symptomatic treatment.