What is endoscopy?

Endoscopy: It is a test in which a doctor ( gastroenterologist usually) uses a an endoscope( a flexible tube with a camera attached to it's end) to look inside your stomach , esophagus , colon or any hollow organ.

Scoping you out!: Endoscopy is a general term meaning inserting a lighted scope into you somewhere, usually further specified by a prefix like colonoscopy, ureteroscopy, laryngoscopy which basically says where it goes. Often the docor can not only look inside but also biopsy (take tissue) and do other tests while in there--may require sedation depending on how far in they go!