Editing Diarrhea (section)

===Irritable bowel syndrome===
{{Main|Irritable bowel syndrome}}
Another possible cause of diarrhea is irritable bowel syndrome (IBS), which usually presents with abdominal discomfort relieved by [[defecation]] and unusual [[Human feces|stool]] (diarrhea or [[constipation]]) for at least three days a week over the previous three months.<ref>{{cite journal | vauthors = Longstreth GF, Thompson WG, Chey WD, Houghton LA, Mearin F, Spiller RC | title = Functional bowel disorders | journal = Gastroenterology | volume = 130 | issue = 5 | pages = 1480–91 | date = April 2006 | pmid = 16678561 | doi = 10.1053/j.gastro.2005.11.061 }}</ref> Symptoms of diarrhea-predominant IBS can be managed through a combination of dietary changes, soluble fiber supplements and medications such as [[loperamide]] or [[codeine]]. About 30% of patients with diarrhea-predominant IBS have [[bile acid malabsorption]] diagnosed with an abnormal [[SeHCAT]] test.<ref>{{cite journal | vauthors = Wedlake L, A'Hern R, Russell D, Thomas K, Walters JR, Andreyev HJ | title = Systematic review: the prevalence of idiopathic bile acid malabsorption as diagnosed by SeHCAT scanning in patients with diarrhoea-predominant irritable bowel syndrome | journal = Alimentary Pharmacology & Therapeutics | volume = 30 | issue = 7 | pages = 707–17 | date = October 2009 | pmid = 19570102 | doi = 10.1111/j.1365-2036.2009.04081.x | s2cid = 11327665 | doi-access = free }}</ref>