Irritable bowel syndrome (IBS) is a functional bowel disease characterized by chronic abdominal pain Pain An unpleasant sensation induced by noxious stimuli which are detected by nerve endings of nociceptive neurons. Pain: Types and Pathways and altered bowel habits without an identifiable organic cause. The etiology and pathophysiology of this disease are not well understood, and there are many factors that may contribute. Irritable bowel syndrome is a diagnosis of exclusion, and organic causes should be ruled out. Once diagnosed, the emphasis is on education and reassurance Reassurance Clinician–Patient Relationship. Dietary modifications and symptom-control measures may also be instituted, depending on the predominant symptoms.
Last updated: Jan 18, 2023
Although no specific organic cause has been identified, there are several possible pathogenic mechanisms.
Irritable bowel syndrome is classified based on the clinical presentation.
Work-up will be guided by the patient’s clinical presentation.
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