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How does sigmoidoscopy check for colon cancer?

ANSWER

A sigmoidoscopy is similar to a colonoscopy, but it looks at your rectum and only part of your colon. It can be done by a primary care physician and doesn't involve sedation.

SOURCES:

National Cancer Institute: "Colorectal Cancer -- Patient Version." American Cancer Society: "Colorectal Facts & Figures," "What is Colorectal Cancer?" American College of Gastroenterology: "Colonoscopy FAQs."

Reviewed by Sabrina Felson on April 22, 2019

SOURCES:

National Cancer Institute: "Colorectal Cancer -- Patient Version." American Cancer Society: "Colorectal Facts & Figures," "What is Colorectal Cancer?" American College of Gastroenterology: "Colonoscopy FAQs."

Reviewed by Sabrina Felson on April 22, 2019

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What is the most common reason people don't get a colonoscopy?

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