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EasyGastroenterologyIrritable bowel syndromeuk-plab-1

A 54-year-old man presents with a 3-month history of alternating diarrhoea and constipation, abdominal bloating and relief of discomfort after defaecation. There is no weight loss, rectal bleeding or nocturnal symptoms. Examination and basic blood tests, including coeliac screen, are normal. What is the most likely diagnosis?

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