Another tidbit to help put your mind at ease. We all worry here about colon cancer. I have a cousin, through marriage, who was diagnosed with stage 3+ colon cancer about six years ago at the age of 52. Her only symptom was just a smidge...and I mean a smidge....of blood in her stool. She only noticed it once and sloughed it off as hemorrhoids. It didn't show up again, another smidge, until six months later. That is when her husband, my cousin, urged her to get a colonoscopy. It was performed about a month later because she had no other syptoms...no weight loss nor other bleeding or pain. Here, it was stage 3+, had already penetrated the colon wall. A few years later, the cancer showed up in her lung. They removed the lung. She is fine now but is always going for tests.
We, with UC, tend to be on top of things. They say our chances increase after ten years, but I didn't notice any postings on here about people having colon cancer. My GI doctor is always putting my mind at ease too. I am a bit concerned because my paternal grandmother died from cancer of the rectum. I believe she may have had IBD but not much was known about it 58 yrs ago when she died.