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Irritable Bowel Syndrome Diagnosis

The process of diagnosing Irritable Bowel Syndrome (IBS) and the role of alarm features in prompting further testing.

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Jan 30, 2026

What are the specific “alarm” features that mandate colonoscopy or stool infection testing in suspected IBS?

Alarm (red‑flag) features that prompt further testing in suspected irritable bowel syndrome () most commonly include older age at symptom onset, gastrointestinal bleeding (overt or occult), unintentio...