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  1. Colonoscopy Procedure: What Happens and How to Prep - WebMD

    May 17, 2024 · What Is a Colonoscopy? A colonoscopy is a medical procedure. A doctor inserts a camera mounted on long, flexible tube called a colonoscope into your rectum and colon. …

  2. Colonoscopy - Mayo Clinic

    Feb 6, 2026 · A colonoscopy (koe-lun-OS-kuh-pee) is a procedure used to examine the inside of the colon, rectum and when indicated the end of the small intestine. It can investigate symptoms such as …

  3. Colonoscopy: Prep & Procedure Details - Cleveland Clinic

    A colonoscopy is an examination of the inside of your large intestine (colon). It’s helpful for diagnosing gastrointestinal diseases, such as inflammatory bowel disease and colon cancer.

  4. Colonoscopy - American Cancer Society

    A colonoscopy is used to check for polyps or colorectal cancer, or to find the cause of symptoms such as changes in bowel habits, bleeding, or weight loss. It’s done by a gastroenterologist, a specialist in …

  5. Colonoscopy - Johns Hopkins Medicine

    A colonoscopy is a procedure that lets your health care provider check the inside of your entire colon (large intestine). The procedure is done using a long, flexible tube called a colonoscope. The tube …

  6. Colonoscopy: Prep, Procedure Details, and Screening - Healthline

    Feb 18, 2025 · In a colonoscopy, a doctor uses a camera to check for abnormalities or disease in your large intestine. Learn how long it takes, what happens after, and more.

  7. How Long Does a Colonoscopy Take? And Other FAQs

    Feb 13, 2026 · A colonoscopy is a medical procedure used to examine the inner lining of the large intestine (colon) and rectum. It is primarily performed for colorectal cancer screening, to detect …

  8. Colonoscopy: Screening, Recovery, and More - Verywell Health

    Feb 17, 2026 · Performed by a gastroenterologist, a colonoscopy is used to screen for colon cancer and to evaluate various colon-related problems like abdominal pain, rectal bleeding, or a change in bowel …

  9. How to prep for a successful colonoscopy - Harvard Health

    Nov 24, 2025 · Bowel preparation (prep) is considered the most unpleasant part of the colonoscopy process, but it’s also crucial. An inadequate prep means the patient will have to repeat the process. …

  10. Colonoscopy: Purpose, prep, and procedure - Medical News Today

    Nov 25, 2024 · What is a colonoscopy? A colonoscopy is a telescopic and visual examination of the colon and rectum. It helps doctors detect abnormalities in the bowel, including signs of colorectal …