All questions about Fibromyalgia

Is fibromyalgia real?

Yes. It is a recognised long-term condition, listed in the World Health Organization's classification of diseases, with published diagnostic criteria and treatment guidelines.

Doctors diagnose it with criteria that look for pain in at least four of five body regions for at least three months, with tiredness, unrefreshing sleep or thinking problems. European and French guidelines set out how to treat it.

Because nothing shows on a scan, people with fibromyalgia are often doubted, more than people with rheumatoid arthritis in one study, mostly by official services, colleagues and the wider family. The pain is real; it comes from how the nervous system processes pain, not from damage where it hurts.

Research is finding biological differences too. In 2026 two large genetic studies, each of more than a million people, found genetic differences linked to fibromyalgia, and in the larger one the signal pointed to the brain and nerve cells. It isn't a test, and there is still no blood test or scan for it, but it adds to the evidence that the condition is real.

Sources

• Haute Autorité de Santé (France): Fibromyalgie de l'adulte, conduite diagnostique et stratégie thérapeutique. Recommendations based on expert agreement
• Wolfe et al.: 2016 revisions to the 2010/2011 fibromyalgia diagnostic criteria (Seminars in Arthritis and Rheumatism)
• EULAR revised recommendations for the management of fibromyalgia (Macfarlane et al., Annals of the Rheumatic Diseases)
• Kool et al.: Lack of understanding in fibromyalgia and rheumatoid arthritis, the Illness Invalidation Inventory (Annals of the Rheumatic Diseases)
• Kerrebijn, Wainberg et al.: The genetic architecture of fibromyalgia across 2.5 million individuals (Nature Medicine 2026;32:3060-3070)
• Bright, Gelernter et al.: The genetics of fibromyalgia and its relationships to psychiatric and medical traits (Nature Communications 2026;17:6248)

Reviewed 2026-11-07 · next review 2027-11-07