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What is IBS (irritable bowel syndrome)

  • IBS (irritable bowel syndrome) is a common condition that affects the digestive system.
  • It causes symptoms like stomach cramps, bloating, diarrhoea and constipation. These tend to come and go over time, and can last for days, weeks or months at a time.
  • It's usually a lifelong problem. It can be very frustrating to live with and can have a big impact on your everyday life.
  • Diet changes and medicines can often help control the symptoms.
  • The exact cause is unknown – it's been linked to things like food passing through your gut too quickly or too slowly, gastroenteritis, oversensitivity in your gut, stress and a family history of IBS.

Page last reviewed: 17 March 2025
Next review due: 17 March 2028