The causes of pain below the sternum are inflammation of the saber, gastrointestinal diseases, etc., as follows: First, inflammation of the sternum: below the sternum is the saber, if the area has been injured in the past, such as the occurrence of fractures of the saber, or local thoracic collision, can produce aseptic inflammation and chronic stale injury, mainly manifested in exertion or external stimulation, chronic pain below the sternum, but also in local cold The pain can also be aggravated by local cold and cold. Second, gastrointestinal diseases: especially gastric disease, chronic atrophic gastritis, indigestion, etc., can appear local chronic dull pain, to the gastroenterology department for further examination.