Insufficient myocardial blood supply stomach pain should be excluded angina attack or acute infarction, if necessary, the application of drugs to improve myocardial blood supply or interventional surgery; may also be caused by digestive disorders, it is recommended to consult a doctor for further differential diagnosis, rational use of medication. 1. Insufficient myocardial blood supply: when the lower wall of the heart is ischemic and hypoxic, due to the location of the common conduction nerves with the stomach and the diaphragm, which may cause the patient to feel gastric pain, it is necessary to carry out electrocardiograms, myocardial enzyme profiles, cardiovascular angiograms, etc. to clarify, and if necessary, to take drugs to dilate the coronary artery or interventional surgery. 2. Digestive system diseases: some patients suffer from gastritis, gastric ulcer and other diseases, it is easy to have stomach pain, need to carry out gastroscopy, breath test and other tests to further clarify, you can use omeprazole, rabeprazole and other drugs to treat. It is recommended that patients go to the cardiology department or gastroenterology department to improve the examination, to avoid blindly using drugs.