The esophagus is the way for food to enter the digestive tract. However, foreign bodies can be swallowed into the esophagus by mistake when eating, laughing or talking loudly, and become foreign bodies in the esophagus when they cannot be spit out and swallowed. 80-90% of the foreign bodies in the esophagus are bone pieces, including fish bones, chicken bones, pig bones, duck bones and goose bones. In addition to bone pieces, foreign bodies are most common in coins, accounting for about 10% and up to about 30% in children. Foreign bodies in the esophagus, whether sharp or smooth, can cause edema and narrowing of the esophagus and even cause puncture, making them very dangerous and should be removed immediately. When there is discomfort, pain, or a persistent foreign body sensation when eating or swallowing; when a child has symptoms such as refusal to eat, increased salivation, pain and discomfort when swallowing, or vomiting, attention should be drawn to whether a foreign body has entered the esophagus. Esophageal foreign bodies often occur in young children and the elderly who have missing teeth, often due to playing with objects in the mouth, eating too fast, swallowing whole, the elderly denture chewing sensation is not sensitive, or sleep when the loose dentures fall off and the formation of esophageal foreign bodies by mistake. If the esophageal foreign body is not removed in time and delayed treatment can cause peri-esophageal inflammation and abscess, mediastinitis and abscess, esophageal fistula, penetration of large blood vessels causing fatal hemorrhage. Prevention of foreign bodies in the esophagus 1, when eating to chew slowly, should not be too hasty. The elderly who have lost more teeth or use denture trays should pay particular attention. Damaged dentures should be repaired in time to avoid loosening and falling off when eating and becoming foreign bodies by mistake. 2.Educate children to correct the bad habit of holding small playthings in the mouth to prevent inadvertent swallowing. 3.Patients with general anesthesia or coma should have their movable dentures removed. 4.After accidentally swallowing a foreign body, do not use your hands to pick it, avoid swallowing action (such as swallowing rice balls, steamed buns, fei cai and other foods) or vomiting, so as not to stab the foreign body to the deep and injure the large blood vessels. It is best to go to the nearest hospital for examination and treatment. For patients who have swallowed foreign bodies, X-ray examination can be conducted immediately, and gastroscopy or esophagoscopy can be performed when available, and smaller foreign bodies can be removed through gastroscopy.