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Differential diagnosis

Last reviewed dd mmm yyyy. Last edited dd mmm yyyy

Authoring team

Diagnoses to be considered in patients with symptoms of irritable bowel syndrome include:

  • neoplasia:
    • colonic adenocarcinoma
    • villous adenoma
  • inflammatory bowel disease
  • chronic constipation:
    • drugs
    • pseudo-obstruction
    • idiopathic
  • chronic diarrhoea:
    • drugs
    • coeliac disease
    • bacterial overgrowth
  • vascular insufficiency:
    • ischaemic colitis
    • abdominal angina
  • intestinal parasites:
    • giardiasis
  • gynaecological disorders:
    • endometriosis
  • psychiatric disorders:
    • depression
    • anxiety
    • somatization
    • panic disorders

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