Bartley, Emily J, Alappattu, Meryl J, Manko, Kelsey et al. · Women's health (London, England) · 2024 · DOI
This study looked at 525 women with chronic pelvic and abdominal pain to understand how endometriosis (a condition where tissue grows outside the uterus) affects their pain experience. Women with endometriosis reported more severe pain, greater interference with daily life, and were more likely to have other overlapping pain conditions like fibromyalgia and chronic fatigue syndrome. The more pain conditions a woman had, the worse her overall pain burden became, regardless of whether she had endometriosis.
This research is highly relevant to ME/CFS patients because it documents the significant burden of multiple overlapping pain conditions and shows that chronic fatigue syndrome is particularly common in women with endometriosis and CPP. Understanding how comorbid pain conditions amplify symptoms and functional impairment is critical for developing integrated treatment approaches that address the full spectrum of symptom overlap in ME/CFS populations.
This study does not establish causality or explain why endometriosis and overlapping pain conditions co-occur—it only demonstrates that they do. The cross-sectional design cannot determine whether endometriosis causes the development of other pain conditions, whether shared biological mechanisms underlie both, or whether they represent distinct but comorbid entities. Additionally, reliance on self-reported diagnoses without medical record confirmation may introduce recall bias or misclassification.
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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