I recently had an ultrasound and was found to have a 9mm kidney stone, as well as a cyst on my kidney. I've had no problems with the stone, but do get fairly regular urine infections. My GP is considering whether or not to refer me, so just wondered if anybody knew what the view of urologists is on this. Do they prefer to deal with a stone of this size before problems begin? I'm in my sixties and have read that this size of stone can't be passed normally. Or, would a urologist usually prefer to leave things as they are? I'm seeing my GP later in the week.