Photon Radiation Treatment After Effects FYI
I updated a post with this response and then noticed the post was from 2024. This made me want to post my experience with the photon radiation treatment I got for anyone thinking about doing it. I had 28 treatments of photon radiation for prostate cancer that was localized and a PSA of 22 when I started. Within weeks I got the side effects they said would go away in weeks or a couple months after treatment ended. Initially it was frequent urination & a stinging sensation when I urinated. 6 months after treatment ended the after effects started getting worse. Very frequent urination/3+ bowel movements a day/a lot of gas when I go to the bathroom every time/bad stomach discomfort on and off all day/feeling light headed all the time/weird itching all over my body. The itching & stomach problems mimicked symptoms of maybe a more serious issue happening not related to my treatment. So I went in for tests over the next 4 months. Blood tests for every organ - liver, kidneys, pancreas, thyroid/Total CBC Blood Test Panel for blood cancer/EKG/Electro-Cardiogram/CT Scan. All tests came up negative for serious issues. Now I am 13+ months from my last treatment. I do stay hydrated so I documented how many times a day I go to the bathroom. Average is 10 times a day with still 3+ bowel movements and gas all the time. I never know what is going to come out. After doing research I have diagnosed myself as having severe "Radiation Cystitis & Radiation Fibrosis". Google those to see what can happen that I wasn't told about. The oncologist I had fried me good. According to google AI It seems I maybe got higher doses than needed of radiation which has contributed to the severity of my after effects and it mentions that radiation does act differently on people. I have read many posts about other's experience with radiation but have yet to come across one that sounds as bad as mine. The oncologist said my treatment plan was "normal" and wasn't different than what others get but I find it hard to believe my after effects are so much worse than normal. My CT Scan also showed my bladder being affected and I quote "a distended bladder with mild wall thickening is a common finding following radiation treatment for prostate cancer". According to my Urologist my bladder fills up but doesn't empty because of damage caused to nerves that make the bladder contract so I go multiple times a day. Am I happy I did radiation instead of surgery ? Yes and No. The good news is my PSA has dropped faster than expected so hopefully the cancer is gone and by 2 years out my PSA should be close to 0. I opted for no hormone treatment, only radiation so I am glad I don't have all those side effects I see from people. I probably should have gotten the surgery if I knew I would feel like this everyday but too late now. I am in my 70's which is why I opted for radiation as I didn't want to be unable to have sex after surgery or have to wear a diaper or pee pad. It's hard enough now at my age for the sex thing lol... Kind of a man thing I guess. Since I have to suffer I am glad I don't have either one of those problems to deal with. Anyway, that's my experience so far. I just hope these symptoms don't get worse or kill me as they really suck as it is. My research says they could get worse so fingers crossed they don't. Good Luck all that have to deal with this. I hope this info helps you ask the right questions & do your own research to see all the possible issues if you are looking into doing this. I didn't and trusted my oncologist who basically just gave me a 3 page print out that mentioned some possible side effects but nothing close to what I have been experiencing for the last 7 months. All the Best to everyone.
Interested in more discussions like this? Go to the Prostate Cancer Support Group.
Connect

@suzdog
Did you have a radiation machine with a built in mri? Did they put spaceoar in a week or so before your treatment?
I just wonder where you were treated and how much experience the doctor had.
I have heard from people that they’ve had similar problems to what you describe. It seems that people who have closer to 40 sessions have fewer issues than those that have closer to 20 because the higher radiation doesn’t work well. I do know in some cases it just doesn’t matter how many sessions some people don’t react well to radiation.
You’re a perfect case for a Prostox test, it would’ve made sense before doing radiation. That could’ve informed you that radiation might not be good for you. I mentioned this so others are aware there is a test that can let you know if Radiation can cause serious problems.
-
Like -
Helpful -
Hug
3 Reactions@jeffmarc
Yea, agree on wishing this kind gentleman had done the Prostox test. Can’t remember if his treatment date was before test availability? One thing that really disturbs me some is that since this test was largely a UCLA thing, other centers of excellence are slow to adopt it and promote its use. The “We didn’t make it so it can’t be any good” mentality seems to be in play, and the patients are left to fend for themselves. I have VENTED I am afraid. Sorry.
-
Like -
Helpful -
Hug
4 Reactions@jeffmarc I never heard of the test until I read your reply. I googled the date it was first available commercially in the USA and the date was October 1, 2025 so way past when my treatment ended. It was my bad not to do more research and just trust the oncologist and his 3 page print out. I hope others take it to see if they are "allergic" to radiation because I wouldn't wish these daily side effects on anybody.
-
Like -
Helpful -
Hug
1 Reaction@bens1 They used a CT scan for treatment planning, not MRI. The radiation machine uses IGRT and IMRT during treatment. My oncologist never mentioned the spaceoar but did make me go get "gold seeds" which I found out later from another radiation oncologist was a stupid idea as the machine technology was such that it targeted the area on it's own. My guy made me wait 4 months from my first visit until I actually had my first treatment. Getting those seeds took waiting 1.5 months to get an appt with my urologist to do it.
-
Like -
Helpful -
Hug
1 Reaction@suzdog Yeah, that is kind of weird since gold fiducials are usually used in 5 visit SBRT (cyberknife and others) treatments to target the gland; as you say, the simulation visit programs the software in the machine on where to go - and where not to, so the gold markers are useless.
IMRT doesn’t usually use rectal spacers if there’s a chance that some PCa cells are near the rectum; you do not want to block the beams from hitting it.
Seems that your RO kind of did his own hybrid approach🤔??
Phil
@heavyphil I don't see the guy anymore so hard to say what his motivation was. He made wait 4 months to start the treatment & get those useless seeds so I am not impressed. My Urologist is my go to guy now. He has been more helpful than the RO ever was.
-
Like -
Helpful -
Hug
1 Reaction@bens1, they haven't figure out how to make the proton equipment compatible with MRI, yet.
@heavyphil
Geeezzz, now I wonder why RO doctor told my hubby that he needs gold markers inserted when we had a consult about possible adjuvant @@ ! RO is well known big shot in the area but now I am freaking out and wondering if we should look for another RO *sigh
Honestly ...
@gently
No they haven’t. The Medical community was looking into a prototype when I was looking at options in 2022 and 2023 but nothing has come out on the market yet. I would have chosen a Proton Therapy back then if they had a built-in MRI.
-
Like -
Helpful -
Hug
1 Reaction