This one is not "routine." My first was ?? 8-- 10 years ago, then another about a year -- year and a half ago. They said something about polyps and wanted to decrease exams to about every 3 or so. Somewhere between Thanksgiving and Christmas my bowel / stools changed. This is somewhat difficult to determine because I've had loose/ irritable bowel on/ off for decades. For the expert on here, diet does not effect that for me, much.