I would resembling to find out nearly ulcer surrounded by the rectum. YThanks?

I have a condition that after two or three days I have no movement without a stimulation, I t works, but I enjoy pain and rectal bleeding. Then it goes away and starts again after a few weeks. The oproctologist gave me a suppository, CANASA, but I still suffer. Can you recommend ?
Answers:    If you regard it may be colon cancer you need a colonoscopy.

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