My FIL has had cancerous polyps removed 2x in his life. Once in his early 40’s and again at age 79. Both times they removed part of the colon as well. The first time it was very minimal. The second time, 7 years ago, they removed 10 inches. He was advised to have chemo after the surgery and even came to Dallas from the small town in East Texas to do so. He had 2 treatments, and didn’t like the way it made him feel sick, so he made a unilateral decision to stop going, and never went back. Shortly after that they decided to move here so that we could be more readily available since my husband had to miss a lot of work driving 3 hrs away every hospital visit. He never disclosed any of that to his new primary care doctor and has not had another colonoscopy. Now with a pacemaker on board and increasing dementia we wonder whether it is worth it to pursue another colonoscopy to see if the cancer returned? or to just let nature take its course? He hasn’t had any symptoms that we know about, but he lives in AL and we do not deal with his bathroom habits. We do know he sometimes has fecal incontinence issues overnight that he attributes to food intolerances with his shortened colon. We have researched some and there are pros and cons to colonoscopy at his age, as well as sedation with the dementia. Any experiences? Advice?