Swallowing esophagus pain may be caused by esophageal foreign body, or it may be caused by gastroesophageal reflux disease, esophageal cancer and other diseases. 1. Esophageal foreign body: refers to the foreign body mistakenly entering into the esophagus, staying temporarily or embedded in the esophagus. It mainly manifests as dysphagia, foreign body obstruction feeling, pain, reflux, dyspnea and other symptoms, which can be manifested as pain in the esophagus when swallowing something. 2. Gastroesophageal reflux disease (GERD): a chronic disease in which the lower esophageal sphincter relaxes for various reasons and gastric contents reflux, leading to a series of symptoms or complications. The main manifestations are acid reflux, heartburn, which may be accompanied by abdominal pain, belching, dysphagia and other symptoms. It can also cause pain in the esophagus when swallowing. 3. Esophageal cancer: refers to malignant tumors occurring in the esophagus and originating from esophageal epithelial cells. It mainly manifests as progressive difficulty in swallowing, and may also manifest as burning or pinprick pain behind the sternum, emaciation, chest pain, hoarseness, choking and other symptoms, which may also cause esophageal pain in swallowing. There are many other causes of swallowing esophageal pain, which should be taken seriously, and timely consultation should be made to identify the cause of the disease and follow the medical advice for further treatment or therapy.