E3 PreliminaryPreliminaryPEM not requiredReview-NarrativePeer-reviewedReviewed
Standard · 3 min
Contribution of gender to pathophysiology and clinical presentation of IBS: should management be different in women?
Ouyang, Ann, Wrzos, Helena F · The American journal of gastroenterology · 2006 · DOI
Quick Summary
This review article examines why irritable bowel syndrome (IBS)—a condition causing digestive discomfort—affects more women than men. The authors discuss how biological sex differences, hormones, and gender roles may influence who develops IBS and how severe their symptoms are. They suggest that while men and women are treated similarly for IBS, paying attention to stress and gender-specific factors might improve care.
Why It Matters
This review is relevant to ME/CFS research because IBS is highly comorbid with ME/CFS and is more prevalent in women—the population predominantly affected by ME/CFS. Understanding how sex and gender influence visceral pain processing and symptom presentation may inform insights into the biological mechanisms underlying overlapping pain and gastrointestinal symptoms in ME/CFS patients.
Observed Findings
IBS is more common in women than men.
IBS is more prevalent in patients with chronic fatigue syndrome, fibromyalgia, and chronic pelvic pain—syndromes predominantly affecting women.
Gonadal hormones influence gastrointestinal motility and sensory afferent pathways.
Gender differences in responses to IBS treatment modalities exist.
Gender role and stress-related factors contribute to clinical presentation of IBS.
Inferred Conclusions
Biological sex factors and gender play roles in IBS pathophysiology and clinical manifestation, particularly through effects on visceral pain processing.
Although current treatment approaches for IBS are similar between genders, greater attention to gender-specific stressors and psychosocial factors may improve outcomes.
Future research may enable development of gender-specific therapeutic interventions for IBS.
Remaining Questions
Which specific hormonal mechanisms most significantly influence visceral pain processing in IBS?
How do psychosocial gender role factors mechanistically interact with biological sex differences to shape IBS severity and symptoms?
What This Study Does Not Prove
This review does not prove that sex or gender differences directly cause IBS, nor does it establish causation for hormonal effects on gastrointestinal function. Being a narrative review rather than an experimental study, it cannot definitively isolate which biological or psychosocial factors are most critical in determining disease severity or treatment outcomes.
About the PEM badge: “PEM required” means post-exertional malaise was an explicit required diagnostic criterion for participant inclusion in this study — not that PEM was studied, observed, or discussed. Studies using criteria that do not require PEM (e.g. Fukuda, Oxford) are tagged “PEM not required”. How the atlas works →
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