This video is lecture of Gastrointestinal Endoscopy Procedure Preparation & Risks by Dr. R. K. Mishra at World Laparoscopy Hospital. Endoscopy has several names, depending on which portion of digestive tract by physician seeks to inspect. Upper GI endoscopy (EGD): This procedure enables the examination of the esophagus, stomach and the upper small bowel called duodenum. Colonoscopy: This procedure enables the doctor to see ulcers, inflamed mucous lining of your intestine, abnormal growths and bleeding in your colon, or large bowel. Enteroscopy: Enteroscopy is a recent diagnostic tool that allows a doctor to see your small bowel. The procedure may be used in the following ways: To diagnose and treat hidden GI bleeding To detect the cause for malabsorption To confirm problems of the small bowel seen on an X-ray During surgery, to locate and remove sores with little damage to healthy tissue