This is Dr. David
after age 75, if are you not having bowel symptoms, most likely you don't need to have a colonoscopy.
"Routine checks usually aren’t needed after age 75."
if you had a colonoscopy 5-10 years ago and it didn't show any problems and no polyps, you most likely don't need a colonoscopy now at your age.
a stool test to check for blood is a good screening test to check for problems in your colon.
you can talk to your doctor about breath hydrogen tests to check for small bowel bacterial overgrowth
but this is a rare condition and would also cause symptoms as well.
you don't have to worry about mucus many years ago
let me know if you have other questions.
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