Children are curious and danger-aware, and like to put toys or other objects into their mouths, but this can easily lead to accidental swallowing or even choking if they are not careful. Today, we will tell you about the more common foreign bodies in the upper gastrointestinal tract in our clinic, and the process of handling them. This is the most common foreign body in the upper gastrointestinal tract in outpatient clinics. Depending on the age of the child and the diameter of the coin, the location of the foreign body is different. In the case of younger children, the coin will usually be stuck at the entrance of the esophagus and the child will show more obvious crying, vomiting, eating disorder, salivation, etc. This condition is easily detected by parents, and the diagnosis can be confirmed by taking an X-ray plain film after consultation. Treatment is mainly based on endoscopic removal. In older children, it is not easy to detect, because on the one hand, parents cannot provide a clear history of the accidental swallowing, and on the other hand, if an older child accidentally swallows a smaller diameter coin, it may remain in the stomach or even go directly to the lower gastrointestinal tract, when there are no obvious symptoms. It is necessary to rely on the medical history provided by the parents to determine the next treatment plan. 2, button battery This is a more dangerous foreign body, no matter what position it is retained in, must be removed under emergency endoscopy, otherwise it will soon corrode and burn the mucosa, causing the risk of gastrointestinal perforation. 3, magnetic ball If a single magnetic bead is swallowed by mistake, there is generally no great danger, as long as it is not very large, usually no jamming will occur and it will be discharged by itself. However, if more than one magnetic bead is swallowed at a time or in parts, it is also necessary to remove it endoscopically or surgically as soon as possible. Because more than one magnetic bead will be adsorbed together, the gastrointestinal mucosa sandwiched in between will soon become ischemic and necrotic, leading to perforation. 4, iron nails / pins, etc. Such sharp foreign bodies, once suspected, as soon as possible to take pictures to clarify the site, if in the upper gastrointestinal tract, you can try to remove endoscopically, if the endoscopic removal difficulties, or has been to the lower abdomen, to perform surgical removal, otherwise it is easy to cause intestinal damage. These metal materials can be seen through the X-ray, so as long as the suspicion to do chest and abdominal X-rays as soon as possible. 5, plastic, wood, paper foreign body This kind of foreign body can not be visualized under X-ray, so if this is the case, you can consider the digestive tract ultrasound to determine the location of the foreign body, or CT examination. The treatment depends on the size, shape and sharpness of the foreign body to decide whether to use endoscopic treatment or surgery. 6, gastric stone Because of eating a lot of hawthorn, red dates, persimmons, etc., it is easy to form food-borne gastric stone in the stomach, or some omnivorous children will swallow hair, dirt, etc., forming gastric stone in the stomach, which generally need to first gastroscopy, clear the size and hardness of gastric stone, first try to remove endoscopically, and consider surgery if it fails.