Hi Dr, I am going to have a colonoscopy next week to remove some polyps, and I am terrified by this. My biggest problem is I have to urinate all the time. I have already had tests done on my bladder, and all they found were a few stones in the bladder, which were removed at the time, however I still urinate all the time, up to 4-5 times per night. Is there any relation between the two things? I am 56 year old male, and a smoker. Thanks Mike