View source for Template:Diarrhea DDX

===[[Acute diarrhea]]===
==== Infectious ====
*[[viruses|Viral]] (e.g. [[rotavirus]]) 
*Bacterial 
**[[Campylobacter]]
**[[Shigella]]
**[[Salmonella]] (non-typhi) 
**[[Escherichia coli]]
***E. coli 0157:H7 
**[[Yersinia enterocolitica]]
**[[Cholera|Vibrio cholerae]] 
**[[Clostridium difficile]] 
*[[Parasitic]]
**[[Giardia lamblia]]
**[[Cryptosporidium]]
**[[Amebiasis|Entamoeba histolytica]]
**[[Cyclospora]]
**[[Microsporidium]]
*Toxin 
**[[Staphylococcus aureus]] 
**[[Bacillus cereus]]

==== Noninfectious  ====
*[[GI Bleed]] 
*[[Appendicitis]] 
*[[Mesenteric Ischemia]] 
*[[Diverticulitis]]
*[[Adrenal Crisis]] 
*[[Thyroid Storm]] 
*[[Toxidromes|Toxicologic exposures]]
*[[Antibiotic]] or drug-associated

====Watery Diarrhea====
* Enterotoxigenic [[E. coli]] (most common cause of watery diarrhea)<ref>Marx et al.  “Cholera and Gastroenteritis caused by Noncholera Vibrio Species”.  Rosen’s Emergency Medicine 8th edition vol 1 pg 1245-1246.</ref>
* [[Norovirus]] (often has prominent vomiting)
* [[Campylobacter]]
* Non-typhoidal [[Salmonella]]
* Enteroaggregative [[E. coli]] (EAEC)
* Enterotoxigenic [[Bacteroides fragilis]]

====[[Traveler's Diarrhea]]====
*[[Giardia lamblia]]
*[[Cryptosporidiosis]]
*[[Entamoeba histolytica]]
*[[Cyclospora]]