Hi, may I answer your health queries right now ? Please type your query here...My 75 year old husband has been under the care of a urologist, had a cystoscopy yesterday, showed thickening of bladdder walls, now is scheduled for a flow test before surg. he didn t ask questions, and I can t get a hold of Dr. today. I wondered what surg. do they do for this? Would this maybe be a biopsy, or would they have done that during the cystoscopy!