The exam always results in one or more polyp being removed (surgery) and the doctor has never said anything about too much bleeding. Best I can
recall I forgot one time to stop the
warfarin, or I was off only the night before the colonoscopy. There were no problems.
I take my warfarin before bed, so my time off warfarin is more like 1.5 days than two days. I go back on warfarin right after the exam, may take 7.5 mg instead of the usual 5 mg to get back on INR faster.