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A member asked:
Do colon tumurs bleed more as the disease progresses?how long can one have a partial obstruction (pencil stools) before it became totally obstructed?
A doctor has provided 1 answer
They can: A sign of colon cancer can be microscopic bleeding or visually obvious bleeding. As the tumor gets larger there is a greater tendency to bleed. As the cancer gets larger the passageway of the colon gets narrower and the stool gets more pencil like (more of a feature of a lower lying colon cancer). When the passageway becomes totally blocked, stool (at least formed) can't pass.
Answered 2/3/2015
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