Radiation proctitis is a very common and extremely unpleasant side affect. Approximately 18 months after my EBRT I experienced extreme rectal bleeding. For one year local drs tried many unsuccessful treatments. Finally went to Mayo in Rochester for a Formalin treatment that was successful in stopping the bleeding.
In my opinion there is a serious problem with drs explaining possible side affects before treatment. My dr was very open to all questions and did explain many possible side affects. I don’t recall rectal bleeding 2 years later ever came up in our discussions. I have been using a fiber supplement called “Yerba Prima Psyllium Husk”. Check it out?