I had a colonoscopy when I was going through the diagnosis process for IBS. During the procedure, 2 polyps were found. They both were adenomas (the kind that can turn into cancer) and one was quite large. My MD was basically shocked and said had those not been found, I would probably have been dealing with cancer in 3-5 years. Besides the polyps, several scrapings showed a mild, non-specific colitis in my colon the "significance of which was not clear". I have been treating the IBS and have been doing well, but will have to be re-checked for polyps in 3 years. Has this happened to anyone else? I know IBS itself doesn't mean a higher risk of cancer, and polyps can be a sign of something wrong somewhere else in the body. P.S., I am only 29.