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.
can food posioning cause blood in my stool? . five hours into excessive vomiting and diahreah? now there is blood in my stool. should i be more concerned or seak immediate care?