There are many reasons for vague pain in the heart, including respiratory system diseases, digestive system diseases, heart diseases, and psychological diseases. Patients need to combine other specific physical symptoms to identify the cause and then carry out targeted treatment. 1, respiratory system diseases: such as bronchial asthma, chronic interstitial lung disease and lung occupancy, etc., may appear vague pain in the precordial region, often related to the pleura being stimulated by pulling; 2, digestive system diseases: such as reflux esophagitis, chronic gastritis and even stomach tumors, etc., may also appear vague pain in the precordial region. The pain lasts for a longer period of time; 3. Heart diseases: Insufficient blood supply to the heart, angina pectoris, cardiomyopathy, etc. may all produce vague pain in the precordial region. When the most common angina occurs, the patient may feel a dull, cramping or crushing pain in the precordial region. For some more sensitive patients the pain may be very intense, but for patients with diabetes or in the elderly, they may not be sensitive to the sensation of pain and may feel the vague pain in the precordial region spontaneously. This kind of angina is mostly caused by overexertion or emotional excitement, increased myocardial oxygen consumption, and can be relieved after rest or nitroglycerin. It is recommended to further improve the electrocardiogram, cardiac ultrasound, and coronary angiography if necessary; 4, psychological diseases: some psychological diseases can cause patients to have symptoms of vague heart pain, such as common cardiac neurosis, anxiety, depression, etc., which can be adjusted by psychological intervention; 5, other: clinically common costochondritis or fasciitis, may also appear this kind of discomfort and vague pain in the heart area, often related to neurological factors. factors, it is recommended to seek medical examination for clarification.