For radiation treatment, you are asked to have a full bladder. That said, the radiation tech advised me that you do not need to be bursting at the seams. I learned after a while to have a glass of water or cup of coffee 15 minutes before treatment. If you are not urinating, the TURP is often the way to proceed. There are 2 ways to do the procedure: one is done with a laser, and the other is done surgically. The latter, I understand, provides a pathologist with more material to examine for evidence of cancer. You will want to ask your MD which might be better in your situation. Dennis G