Foreign body in the esophagus with back discomfort may be caused by reflux esophagitis, pancreatic dystrophy, esophageal cancer and other diseases. The treatment methods are different for different diseases, including lifestyle modification, medication and surgery. 1. Reflux esophagitis: The contents of the stomach and duodenum reflux into the esophagus due to various reasons, damaging the mucosa of the esophagus and leading to the symptoms of acid reflux, heartburn, retrosternal pain, and radiating pain in the back. It can be treated by taking acid-suppressing drugs such as omeprazole and gastric-promoting drugs such as domperidone. Usually pay attention to eating less and more meals, standing or walking after meals, avoiding strong tea, coffee and other foods. 2. Pancreatic dystrophy: Typical symptoms are dysphagia, sternal pain, etc. It can also cause radiating pain in the back. Symptomatic treatment can usually use nitroglycerin and other nitrate drugs to relieve the symptoms of dysphagia, and can also use omeprazole and other acid-suppressing drugs to relieve the symptoms of acid reflux. For causal treatment, transoral endoscopic myotomy or surgery can be used. 3. Esophageal cancer: the cause of esophageal cancer is still unclear, but it is usually caused by factors such as smoking, drinking and bad dietary habits. The main manifestations are progressive dysphagia, persistent chest and back pain, emaciation and weakness. The main treatment for this disease is surgical resection, but non-surgical treatment such as radiofrequency ablation can also be used. In addition, the symptoms of esophageal foreign body sensation and chest and back pain may also be due to cardiac diseases such as coronary heart disease, endocarditis, or other diseases of the digestive system such as gastritis and cholecystitis. It is recommended to go to the hospital in time for treatment with the help of a doctor.