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Do I have to get a second colonoscopy after 10 years if the first is normal?

What evidence is there that a repeat colonoscopy ten years after a completely normal one is of value? I had a normal – no polyps – colonoscopy at age 60. I am now 70 with three negative fecal occult blood tests and no family history. Is there any evidence whatsoever that it is worth undergoing a second colonoscopy screening after ten years? Or is it simply a recommendation based on tradition?

Healthcare Providers (1)

Time for a polyp to turn into cancer is 5 to 10 years. That is the reason for a repeat colonoscopy after 10 years.

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