@jcmacqueen
After I posted my reply I was thinking maybe they are doing colonoscopy to fix the bleeding.

I was just (prior post) passing on the concerned my R/O had with doing colonoscopies after radiation treatments as colon will have some damage and easily injured. But you needed to address the bleeding not just a routine colonoscopy.

Did you have proton or photon radiation? Did you have the high dose radiation (short term treatments) or the low dose long term treatments?

Although still going through a lot of studies and different opinions the photon radiation since it passes through the entire body versus proton stopping at predetermined spot and not passing through body has been shown to have diferent radiation damage to colon and other organs tissues.

My PCP is really doing a lot of reearch on this and many studies are looking at if Space/Oar is really justified to help reduce radiation damage to colon. He said also looking at the practice of drinking water prior to radiation to move bladder away from prostrate.

What he is saying is the study is to make getting the treatments the best for patients and to ensure the additional precautions that are done now are showing long term benefts. I think those studies are good but for me I wanted to take as much precautions as I could not so I chose proton not photon radiation, get the Space/Oar and drink the water.