WebMD Answers
Yes, bloody diarrhea is concerning and should be evaluated immediately by a doctor.
Bloody diarrhea due to E coli 0157:H7 infection can sometimes have severe complications. Bloody diarrhea can also be caused by Salmonella, Shigella and Campylobacter infections.
There are some other serious non-infection related conditions that can also be associated with bloody diarrhea that should be evaluated by a doctor.
Hope this helps. Take care.
This answer should not be considered medical advice...
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