Thanks. Just a precaution to see if I am fit for them getting to my prostate through my penis and scrape some of it away from the neck of the bladder. They'll be inside for about one hour or so. The room is rented for two hours so it shouldn't take too long. Besides, a few chippers have been telling me it is an okay thing and much safer than not having it done which can damage the bladder and kidneys, too, and actually shut down the kidneys.