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Causes of IBS

It is still unclear what causes IBS, and in different people there are probably a variety of factors (often more than one in any given individual). Some of the factors have been found to be important in this condition include:

  • Post-Infective IBS
  • Indigenous Microbiota
  • Visceral Hypersensitivity
  • Familial Tendency
  • Hormones
  • Gastrointestinal Motility
  • Comorbidity with other Disorders
  • Psychological Factors
  • The Brain-Gut Connection


If you are interested in other gastrointestinal-focused information and intervention websites developed and hosted at
Swinburne University of Technology,
please go to:

IBDclinic.org.au for individuals with Inflammatory Bowel Disease

Gastroparesisclinic.org for individuals with Gastroparesis


This website and its content is not intended or recommended as a substitute for medical advice, diagnosis or treatment. Always seek advice of your own physician or other qualified health care professional regarding any medical questions or conditions.

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