Q. Is someone underwent a prostate examination (biopsy) or a removal operation and is bleeding anally or in his urine, can he daven or recite brochos?
A. Horav Shlomo Miller’s Shlit’a opinion is that the anal blood emissions, if they are only blood without any feces, and are staining the clothing or the skin, even when wet, are not considered “tzoah” or fecal mater, they are just blood, and one may daven, recite brochos or learn Torah while still there.
As far as blood oozing with his urine, it should be considered as the urine itself, since it is usually mixed with it. Therefore, if covered and already absorbed in the inner clothing, even if still a bit wet, it would be permitted when in need.
Rabbi A. Bartfeld as revised by Horav Shlomo Miller Shlit’a