Angina and reflux esophagitis have different causes, different symptoms and different treatments. 1. Different causes: angina pectoris occurs when there is a narrowing of the coronary arteries, and angina pectoris occurs when there is severe myocardial ischemia. Reflux esophagitis is related to esophageal reflux, and food irritation is the main cause of inflammation. 2. Symptoms are different: angina pectoris is often manifested as chest pain after exertion or emotional excitement, while the chest pain caused by reflux esophagitis is mostly related to eating, and often develops after eating or lying down. 3. Different treatments: Patients with coronary heart disease need to be treated with aspirin, atorvastatin, nitroglycerin and other medications, and in severe cases, stents or coronary artery bypass grafts need to be implanted. Patients with reflux esophagitis need to be given drugs such as Itopride, which promotes gastric motility, and Omeprazole, which inhibits gastric acid. If the above discomfort occurs, it is recommended to consult a doctor in time for examination, clear diagnosis and early treatment.