What causes pain below the heart?

If a person has symptoms of pain below the heart, the following points should be considered: First, it is necessary to consider cardiogenic diseases, such as unstable angina pectoris of coronary heart disease, myocarditis or pericarditis, infective endocarditis, hypertrophic obstructive cardiomyopathy or heart failure, which will cause pain below the heart. Second, if the patient shows respiratory system diseases, such as pneumothorax caused by various factors, large pleural effusion, pleurisy, lung infection, there will also be pain below the heart. Third, for digestive system diseases, more common are acute gastroenteritis, bile reflux gastritis, acute esophagitis or gastroduodenal ulcer, there will be heartburn, pain below the heart symptoms when acid reflux. Fourth, for some patients with cardiac neurosis, there will also be clinical manifestations of pain on the lower side of the heart when the autonomic nerve function is disturbed.