Esophagogastroduodenoscopy (EGD) is considered to be a very low risk procedure during which a small flexible endoscope is introduced through the mouth and advanced through the esophagus (throat), into the stomach and first few inches of the duodenum (small intestine). EGD can be used for both diagnostic testing as well as for therapeutic purposes. Patients undergoing an EGD are sedated throughout the procedure and usually have little or no memory of the process. Occasionally a physician may obtain very small tissue samples (biopsies) or may remove small fleshy growths called polyps during the procedure. Most specimens removed are sent to a laboratory for analysis and the patient receives a report within several weeks.