My first colonoscopy at age 33 revealed a very limited number of polyps, which my GI removed. Two years later, I had a repeat colonoscopy following a significant discharge of blood. There were now hundreds of polyps present, and any one of them could become malignant. FAP can only be cured by having your colon removed. I would definitely follow your surgeon’s recommendation regarding the urgency in having surgery. If you have any doubts, you could get a second opinion.