There are more causes of pleural pain, as follows: 1. abdominal organ lesions: including abdominal trauma, subdiaphragmatic abscess, acute cholecystitis, acute pancreatitis, etc., which can lead to involvement pain and radiating pain in the pleural area; 2. chest trauma: including rib fracture, hemopneumothorax, sternal fracture, mediastinal pleural rupture, etc.; 3. mediastinal diseases: including reflux esophagitis, chronic gastritis, mediastinal infection, etc.; 4. intra-thoracic organ lesions: such as palpitation, angina pectoris, myocardial infarction, pulmonary embolism, chronic wheezing disease, lung infection, etc.; 5. esophageal lesions: such as esophageal diverticulum or esophageal rupture infection, etc.