Do not, not slough that off. I scoffed too and finally got one to stop my dads nagging. Three polyps the first go round, none malignant then or in subsequent scans.
Had a co-worker go out with colon cancer. He died hard. Very, very hard.
I put it off for more years than recommended, and when I had the first one at 66 years old it screwed up the doctors schedule when he took hours to get the dozen large polyps out.
I was really lucky, a couple of them were cancerous but the cancer hadn't spread through the polyp ‘root’ into the colon wall yet.
Guys, don't put off the big probe - but get your doc to knock you out for the procedure. As a bonus apparently I even have a tattoo somewhere up there I can't even show people...:^)