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Knowledge Centre / Diarrhoea (Chronic)

Diarrhoea (Chronic)

Investigation of persistent diarrhoea.

Reviewed by Dr Kola Tytler MBBS CertHE MBA MRCGP (General Practitioner)
Last reviewed: 30 August 2025
Gastroenterology

Clinical Guidelines

British Society of Gastroenterology guidelines on the management of chronic diarrhoea
National
CKS: Chronic diarrhoea (more than 4 weeks)
National
CKS: Diarrhoea - adult's assessment
National
NICE guideline [NG84]
National

Recent iatroX Q&As

  • What initial investigations should I consider for a patient presenting with chronic diarrhoea lasting more than four weeks?Updated: 8/16/2025
  • How do I differentiate between inflammatory bowel disease and irritable bowel syndrome in a patient with chronic diarrhoea?Updated: 8/16/2025
  • What are the indications for referring a patient with chronic diarrhoea to a gastroenterologist?Updated: 8/16/2025
  • Which dietary modifications should I recommend to a patient with chronic diarrhoea while awaiting further investigation?Updated: 8/16/2025
  • What role do stool tests play in the investigation of chronic diarrhoea, and which specific tests should I order?Updated: 8/16/2025
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