Goldenberg, D L · The Journal of rheumatology. Supplement · 1989
This study compared fibromyalgia and ME/CFS, two conditions that can feel similar to patients. Researchers found that most people with ME/CFS had tender points in their muscles similar to fibromyalgia patients. They also noted that both conditions may share similar underlying causes related to viral infections and how the immune system responds.
This early study was among the first to systematically examine the relationship between ME/CFS and fibromyalgia, helping establish that these conditions share overlapping clinical features. For ME/CFS patients who also experience widespread pain, this work validates that their symptoms align with recognized medical patterns. Understanding these connections may guide better diagnostic approaches and reveal shared biological mechanisms that could improve treatment strategies.
This study does not prove that ME/CFS and fibromyalgia are the same disease, only that they share some clinical features. It does not establish that viral infection causes ME/CFS or fibromyalgia—only that immune abnormalities may be involved. The observational design and lack of detailed control comparisons mean causality cannot be determined from these findings alone.
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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