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Replies to "Most guys in my support group who had radiation did NOT have any urinary or bowel..."
I had 28 sessions of EBRT with a True Beam machine. I had fiducial markers embedded in my prostate to help with targeting the radiation, and I had a SpaceOAR gel pack injected between my prostate and rectal wall to create some separation between prostate and rectum to reduce collateral damage to my rectum.
About mid-way through my treatments, I started to experience greater urgency and frequency of urination, and some discomfort getting the urine flow started. I also noticed that I began having a couple of bowel movements a day rather than my usual one - so I guess there must have been some irritation there. None of this was a really big deal, but for a stretch there, I didn't like to find myself too far from a restroom. I did not experience any incontinence, urinary nor bowel.
30 days post-treatment, the side effects persist, but have eased off considerably.
The 28 trips to the treatment center, plus a couple of setup visits, got to be a bit of a drag, but manageable (I'm retired, so I wasn't trying to squeeze things in around work). I live about 20 minutes from the treatment center and the treatments themselves are quick (< 10 minutes), so I was usually there and back in an hour.
I read that they now put a "spacer" between the bowel & the area getting targeted by radiation, so there's less collateral damage to the bowel or bladder.
Still glad I had mine out, though.