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MediumGastroenterologyIrritable bowel syndromeau-amcau-racgp

A 52-year-old man presents with intermittent crampy abdominal pain, bloating and altered bowel habit for 6 months. Colonoscopy is normal and there are no red flag features (no weight loss, anaemia or rectal bleeding). Symptoms are worse with stress and improve after defecation. What is the most likely diagnosis?

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