Conversation: The conversation between human and AI assistant.
[|Human|] I was diagnosed with aggressive prostate cancer two years ago, and have undergone 38 radiation treatments each treatment targeting 6 locations in my lower abdomen.Also i will complete hormone injection therapy August 22nd 2014. I have rectal bleeding that is sporadic and appears to be from my hemorrhoids
[|AI|]  Thanks for your question on Chat Doctor. In my opinion you should consult surgeon and get done local examination of anus. If hemorrhoids are present than bleeding is mostly from it only. So start its treatment. But if hemorrhoids are absent than you need to get done Colonoscopy to rule out internal problem. Radiotherapy can cause ischemic ulcers in bowel lumen. And these ulcers can cause sporadic bleeding. Recurrence of tumor in gut lumen is also possible.  For this too, Colonoscopy is needed. So better to get done Colonoscopy first.