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  1. Colonoscopy - Mayo Clinic

    Feb 28, 2024 · A colonoscopy (koe-lun-OS-kuh-pee) is an exam used to look for changes — such as swollen, irritated tissues, polyps or cancer — in the large intestine (colon) and rectum. …

  2. How to make colonoscopy prep easier - Mayo Clinic Press

    Jun 27, 2025 · Colonoscopy remains the gold standard for detecting and removing colon polyps before they have a chance to turn into colon cancer. But for the test to work as it should, your …

  3. Colon cancer surgery - Mayo Clinic

    Jul 8, 2025 · A colonoscopy uses a tiny camera on the end of a flexible tube, called a colonoscope, to visually examine the colon. During the colonoscopy, a medical specialist …

  4. Mayo Clinic Q and A: So you’re having a colonoscopy: What to …

    Mar 17, 2025 · Colonoscopy is an invasive test, but it allows us an opportunity to not only see polyps, but also remove them at the same time. For people with no additional risk factors …

  5. Colon cancer - Symptoms and causes - Mayo Clinic

    Dec 19, 2024 · Colon cancer can happen in any part of the colon. An exam of the whole colon using a long, flexible tube with a camera is one way to detect colon cancer and polyps. This …

  6. Colon cancer stool: What to look for and how to test at home

    Colonoscopy is the most widely used and most accurate screening test for colorectal cancer in the U.S., but it is invasive and requires sedation. Less invasive, at-home test kits are available.

  7. Stage 4 (metastatic) colon cancer - Mayo Clinic

    Jul 18, 2025 · CT and MRI scanning are the main imaging tests used to detect colon cancer and assess how far the cancer has spread when you've already been diagnosed with colon cancer.

  8. Stage 4 (metastatic) colon cancer - Symptoms and causes

    Jul 18, 2025 · Find out about symptoms and complications for this advanced stage of colon cancer. Learn about treatment options, including chemotherapy, surgery and targeted medicines.

  9. Colon cancer - Treatment - Mayo Clinic

    Apr 14, 2025 · During a polypectomy, specialized tools are placed through a flexible tube called a colonoscope, which is guided into the colon to remove the polyp from the colon's lining.

  10. Mayo Clinic Q&A: What do you know about colon cancer?

    Aug 20, 2025 · A follow-up colonoscopy is needed to identify the polyp and potentially remove it. If you have more questions, talk with your healthcare team about screening options for …