Endoscopy is a versatile procedure used for both diagnostic and therapeutic purposes. The specialty and physician to be consulted vary depending on the type of endoscopic procedure and the organ to be examined. Specifically, for upper gastrointestinal endoscopy, which covers the esophagus, stomach, and duodenum, it is necessary to consult with Gastroenterology or General Surgery specialists. It is of great importance that the performing physician has sufficient experience to minimize the risk of potential complications.