Rectal biopsy
![Rectal biopsy](/TransAdam/doc/graphics/images/en/9545.jpg)
Rectal biopsy
Rectal biopsy can be used to determine the cause of blood, mucus, or pus in the stool. Rectal biopsy can also confirm findings of another test or x-rays, or take a biopsy of a growth found in the colon.
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