Hi . This is a good question. I know that the first step is to try to actually avoid radiation damage. This article from our editorial team discusses rectal spacers to reduce the harmful effects of radiation: https://prostatecancer.net/clinical/rectal-spacers. Dennis also discusses minimizing damage here: https://prostatecancer.net/living/more-options. Finally, to more directly address your question, this article from our editorial team discusses bowel symptoms and treatments: https://prostatecancer.net/symptoms/bowel. It is important to also discuss with your doctors mitigation options and treatment for any damage as well. Hope this information is helpful and please feel free to keep us posted on how you are doing and to ask questions. Best, Richard (Team Member)