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:
How the Test is Performed
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.
Endoscopy is often used to examine and treat parts of the digestive tract, such as:
How to Prepare for the Test
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.
How the Test will Feel
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.
Duffey B, Monga M. Principles of endoscopy. In: Wein AJ, Kavoussi LR, Novick AC, et al, eds. Campbell-Walsh Urology. 10th ed. Philadelphia, PA: Elsevier Saunders; 2012:chap 8.
Lentz GM. Endoscopy: hysteroscopy and laparoscopy. In: Lentz GM, Lobo RA, Gershenson DM, Katz VL, eds. Comprehensive Gynecology. 6th ed. Philadelphia, PA: Elsevier Mosby; 2012:chap 10.
Phillips BB. General principles of arthroscopy. In: Canale ST, Beaty JH, eds. Campbell's Operative Orthopaedics. 12th ed. Philadelphia, PA: Elsevier Mosby; 2013:chap 49.
Wilcox CM. Atlas of Clinical Gastrointestinal Endoscopy. 3rd ed. Philadelphia, PA: Elsevier Saunders; 2012.
Yung RC, Flint PW. Tracheobronchial endoscopy. In: Flint PW, Haughey BH, Lund V, et al, eds. Cummings Otolaryngology: Head & Neck Surgery. 6th ed. Philadelphia, PA: Elsevier Mosby; 2015:chap 72.
Review Date: 4/30/2015
Reviewed By: Laura J. Martin, MD, MPH, ABIM Board Certified in Internal Medicine and Hospice and Palliative Medicine, Atlanta, GA. Also reviewed by David Zieve, MD, MHA, Isla Ogilvie, PhD, and the A.D.A.M. Editorial team.
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. Call 911 for all medical emergencies. Links to other sites are provided for information only -- they do not constitute endorsements of those other sites. © 1997- A.D.A.M., Inc. Any duplication or distribution of the information contained herein is strictly prohibited.