Endoscopy is a way of looking inside the body using a flexible tube that has a small camera and light on the end of it. This instrument is called an endoscope.
Small instruments can be inserted through an endoscope and used to:
An endoscope is passed through a natural body opening or small cut. There are many types of endoscopes. Each one is named according to the organs or areas they are used to examine.
Preparation for the procedure varies depending on the test. For example, there is no preparation needed for anoscopy. But a special diet and laxatives are needed to prepare for a colonoscopy. Follow your health care provider's instructions.
All of these tests may cause discomfort or pain. Some are done after sedatives and pain medicines are given. Check with your provider about what to expect.
Each endoscopy test is done for different reasons. Endoscopy is most often used to examine and treat parts of the digestive tract, such as:
Each endoscopy test has its own risks. Your provider will explain the risks to you before the procedure.
Phillips BB. General principles of arthroscopy. In: Azar FM, Beaty JH, eds. Campbell's Operative Orthopaedics. 14th ed. Philadelphia, PA: Elsevier; 2021:chap 49.
Raymond L, Lentz GM. Endoscopy in minimally invasive gynecologic surgery. In: Gershenson DM, Lentz GM, Valea FA, Lobo RA, eds. Comprehensive Gynecology. 8th ed. Philadelphia, PA: Elsevier; 2022:chap 10.
Sugumar A, Vargo JJ. Preparation for and complications of gastrointestinal endoscopy. In: Feldman M, Friedman LS, Brandt LJ, eds. Sleisenger and Fordtran's Gastrointestinal and Liver Disease. 11th ed. Philadelphia, PA: Elsevier; 2021:chap 42.
Yu DH, Feller-Kopman D. Tracheobronchial endoscopy. In: Flint PW, Francis HW, Haughey BH, et al, eds. Cummings Otolaryngology: Head and Neck Surgery. 7th ed. Philadelphia, PA: Elsevier; 2021:chap 71.BACK TO TOP
Review Date: 5/3/2023
Reviewed By: Michael M. Phillips, MD, Emeritus Professor of Medicine, The George Washington University School of Medicine, Washington, DC. Also reviewed by David C. Dugdale, MD, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.
Health Content Provider
The information provided herein should not be used during any medical emergency or for the diagnosis or treatment of any medical condition. A licensed medical professional should be consulted for diagnosis and treatment of any and all medical conditions. Links to other sites are provided for information only -- they do not constitute endorsements of those other sites. © 1997- 2023 A.D.A.M., a business unit of Ebix, Inc. Any duplication or distribution of the information contained herein is strictly prohibited.