The difference between heart disease and stomach pain is usually more obvious, as follows: 1. Heart disease pain: pain symptoms caused by heart disease, some accompanied by radioactive pain, and the location of the pain and stomach pain is relatively upper, especially after the patient has hypertension, coronary heart disease and other related basic diseases, if the occurrence of left chest pain, or more consider the occurrence of heart-related diseases. 2. If the patient has been suffering from stomach discomfort, and after perfecting gastroscopy, it is found that there is a gastric ulcer and other related diseases, the pain is mostly in the right upper abdomen, and there is a certain correlation with eating, and when eating spicy food or drinking alcohol, the pain symptoms will be aggravated. For the identification of the two diseases, it is still necessary to improve the electrocardiogram, esophagoscopy, gastroscopy and other related tests to further clarify.