The chest always hurts, which means that the frequency of chest pain attacks is relatively high, then you need to pay attention to the following situations: First, if the pain all occurs after exertion or mental stress, rest or nitroglycerin can be relieved, and the site of pain is located in the back of the sternum, the anterior region of the heart or under the rapier, and at the same time, it can be radiated to the left shoulder and the inner side of the left arm, this kind of pain is generally considered to be of cardiac origin, such as angina pectoris, cardiac infarction, and so on. Second, if the pain is in the lateral chest wall, aggravated by coughing and deep breathing, accompanied by respiratory symptoms such as coughing, coughing up sputum, fever, etc., it is generally considered to be caused by pleural inflammation. Third, if the site of pain is the upper abdomen under the raphe, accompanied by acid reflux, belching, loss of appetite and other digestive symptoms, often considered to be caused by reflux esophagitis. As for what causes the chest pain, it is best to go to the hospital in time to consult the appropriate examination to be clear.