This means more than the normal amount of bowel, or large intestine. I believe it can occur an any part of the colon.
I found out I had this condition during a colonoscopy but it never caused me any problems until this past winter. In my case the extra intestine was in the transverse colon and it had looped down into my pelvic cavity where it got stuck in some adhesions from an appendectomy a few years ago. I wound up having a lot of it removed because it became necrotic.
One thing for sure, if you have this condition plus previous abdominal surgeries you are at risk for this sort of thing so do not ignore stomach aches and particularly constipation.
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