What kind of department does the gastroscope hang

Gastroscopy includes examination of esophagus, stomach and duodenum. The indications for gastroscopy are: 1. Patients with unexplained dysphagia, retrosternal pain, burning sensation and other upper gastrointestinal symptoms. 2. The cause of upper gastrointestinal bleeding needs to be clarified. 3. Suspected upper gastrointestinal lesions, but X-ray barium meal examination cannot confirm the diagnosis. 4. Esophageal stomach or duodenal lesions need regular follow-up or observation of curative effect. 5. All kinds of interventional therapy under endoscope are needed, such as endoscopic bleeding, upper gastrointestinal polyps and leiomyoma removal, esophageal varices, esophageal stenosis dilation treatment and removal of foreign bodies.