Chest pain can also be caused by stomach discomfort, and there are many conditions that can lead to chest pain such as heart disease, respiratory disease is the most common. However, digestive disorders can also cause such symptoms. When the lower esophageal sphincter has problems functioning, it can lead to reflux of stomach contents into the esophagus, which can lead to reflux esophagitis. Gastric acid and bile salts as well as food will irritate the esophagus, and patients with esophagitis will be guaranteed to suffer from dysphagia, reflux, heartburn, and tightness and discomfort behind the sternum. Therefore, at this time, after the exclusion of cardiac and respiratory diseases, it is recommended that the patient can be added with PPI acid medicine, mucosal protective agents and power medicine symptomatic treatment, to see if it can alleviate the symptoms of chest distension and pain. If necessary, gastroscopy can also be carried out to further observe whether the esophagus and stomach have corresponding diseases, so stomach discomfort can also lead to chest distension.