About 6 months ago I noticed blood in my stool and had to have a colonoscopy. They found a benign polyp. They then recommended I get a barium anenema as they couldn't complete the colonoscopy - I'm sorry, I've forgotten the name they used for it. I did not get the barium anenema done.
I have noticed blood again in my stool but I am due for my period in about a week. Could the blood in the stool be due to getting my period?
I'm not a doctor but I would imagine that the presence of rectal blood is mutually exclusive and not connected to any other issuance of blood from any other "opening".
I would suggest that you should ask your doctor to arrive at a definite diagnosis for your rectal blood.