Your doctor will use a thin, flexible tube called an endoscope, which has a camera and light source. Images from the camera appear on a video monitor. You will receive pain medicine and a sedative to help you relax during the exam. The endoscope transmits an image of the inside of the esophagus, stomach, and duodenum, so the physician can carefully examine the lining of these organs. The scope also blows air into the stomach; this expands the folds of tissue and makes it easier for the physician to examine the stomach.

The physician can see abnormalities, like ulcers, through the endoscope that doesn’t show up well on x-rays.

Upper Endoscopy videohttps://www.youtube.com/watch?v=vItktDQo-mE&list=PLXDjHkNHZg2mfwG6J0qmDLeS3SXape_qq&index=3