Hidden pain in the middle of the chest socket, beware of heart disease, digestive system diseases, pleurisy, trauma, etc.. 1. Heart disease: angina pectoris, pericarditis, myocarditis and other heart diseases, due to insufficient blood supply to the heart, myocardial damage or inflammation stimulation, which leads to the symptoms of vague pain in the middle of the chest. 2. Digestive system diseases: gastritis, gastric ulcer, gastroesophageal reflux disease and so on. Due to excessive secretion of gastric acid, belching, acid reflux, burning symptoms. At the same time, gastric acid reflux stimulates the esophageal mucosa, which can lead to a vague pain in the middle of the chest. 3. Pleurisy: when certain pathogenic factors stimulate the pleura, it can lead to inflammation of the pleura, and the phenomenon of vague pain in the middle of the chest. There may also be pain in the abdomen, neck or shoulder, and the pain may be aggravated by deep breathing. 4. Trauma: external violence on the chest wall soft tissue or sternum, resulting in soft tissue injury, sternum fracture, will appear in the middle of the chest hidden pain performance. It is recommended to go to the hospital for examination in order to clarify the cause of the disease and treat the cause, so as to avoid delaying the condition.