My mother recently had a colonoscopy and it was a really scary wait for the results. We understood that if they had found polyps, they would have taken a sample and we wouldn't find out if it was cancer for a few days.
My mother has had some stomach issues for a while now and we were pretty convinced that there was something wrong and that they were going to find colon cancer. My grandfather had cancer removed more than once, so we know it runs in the family.
But they didn't find a single polyp. And my mother is almost 60, so the doctors were actually surprised that there wasn't anything at all there, let alone cancer.
It was good, of course, but also a bit frustrating because we still don't know why she is feeling unwell all the time.