Upper endoscopy

An upper endoscopy is a minimally invasive procedure used to examine the esophagus, stomach, and upper part of the small intestine. Using a thin, flexible tube with a camera, providers can identify the cause of symptoms such as heartburn, difficulty swallowing, abdominal pain, or nausea. The procedure can also be used to take small tissue samples (biopsies) and, in some cases, treat certain conditions—all without surgery.