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Is a colonoscopy less risky than a sigmoidoscopy?

Is it true that colonoscopy is less risky than sigmoidoscopy? In what situation would a sigmoidoscopy be more appropriate to get for a patient than a regular colonoscopy?

Healthcare Providers (2)

They carry the same risk. Colonoscopy is a better screening test and should be
the test of choice.

A sigmoidoscopy is visualizes a smaller portion of the colon than a colonoscopy does. A complete colonoscopy looks at the entire large intestine. Which procedure would be best is dependent on what the patient symptom are.

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