A 29-year-old female asked:
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12months chronic diarrhea(always yellow).next monday i'll do blood and faeces tests to investigate.today black diarrhea(ebony).why?bad sign?thanks

2 doctor answers
Dr. Heidi Fowler
24 years experience Psychiatry
This might be due: to blood in stool. Was in malodorous? Please let your doctor know asap. Taking iron or Pepto Bismal can also cause black stools.
Answered on Nov 21, 2014
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Dr. Philip Miller
46 years experience Family Medicine
Change in bowel habi: of 12 months duration requires a formal colonoscopy and evalaution for GI illness. Please get a second GI evaluation.
Answered on Nov 21, 2014
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