My brother used cologuard as prescribed by his doctor. It came back in December of 2021 as problematic and had to get a colonoscopy where they discovered he had terminal colon cancer. He passed away last March. He had a colonoscopy at 50 and was told cologuard was a safe alternative. He was 55 when he passed away. I don't know if the doctor prescribed because he found troubling signs at 50 and thought it was best to check with cologuard annually as opposed to having a colonoscopy in a few years, if it was in combination with the three year plan or he didn't find any problems and thought cologuard was enough. Another brother, who is his natural born sibling lives with me. Our doctor recommended every three years because he found some worrisome polyps but didn't mention cologuard. Now that I read your doctor didn't really know much about it I'm going to ask. If he doesn't know much about it and thinks it's a good idea you may have helped save another's life just by a random comment.