What is fibromyalgia?
Fibromyalgia is a chronic disorder of pain processing with widespread pain, exhaustion, and sleep problems – not inflammation and not imagination.
- Author
- Frederik MarquartFounder & CEO, Elara Health
- Editorial responsibility
- Elara HealthPatient-centered health information
- Last updated
- September 13, 2026
Short definition
Fibromyalgia is a chronic pain condition with widespread pain across several body regions for at least three months.
The cause is not inflammation or organ damage but altered, hypersensitive pain processing (central sensitization).
Typical additional features are exhaustion, unrefreshing sleep, and concentration problems (“fibro fog”).
Fibromyalgia stands for fibromyalgia syndrome (FMS): a chronic condition with widespread pain across several body regions, almost always accompanied by exhaustion and sleep problems. It is real and biologically grounded – even if nothing can be “proven” in labs or imaging.
Core features
widespread pain for at least three months
altered pain processing rather than inflammation
often exhaustion, sleep disturbance, and fibro fog
women are affected more often than men
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A disorder of pain processing
In fibromyalgia, the nervous system processes pain signals with heightened sensitivity. Stimuli that would normally be barely or not painful are perceived more strongly. This is known as central sensitization.
Importantly, there is no inflammation and no progressive damage to joints or organs. Fibromyalgia is therefore not the same as rheumatism in the narrower sense, even though symptoms can overlap.
How common is fibromyalgia and whom does it affect?
Fibromyalgia is one of the more common chronic pain conditions. Women receive the diagnosis considerably more often than men, but in principle it can occur at any age.
Onset is often gradual. Many people report having had unclear pain for a long time before the pattern was recognized as fibromyalgia.
one of the more common chronic pain conditions
women affected more often than men
often gradual onset over months to years
no progressive joint or organ damage
Why it is not imagination
Because standard investigations remain unremarkable, those affected often hear that they are imagining their symptoms. That is not correct: the altered pain processing is described in measurable terms and recognized in guidelines.
Psychological strain, stress, or earlier difficult experiences can amplify symptoms and are part of treatment – but they are not the sole cause of the condition.
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FAQ
Is fibromyalgia a rheumatic disease?
Fibromyalgia is often managed in a rheumatology setting but is not an inflammatory rheumatic disease. It does not cause joint destruction as, for example, rheumatoid arthritis does.
Does fibromyalgia shorten life expectancy?
No. Fibromyalgia does not cause organ damage and, by current knowledge, does not shorten life expectancy. It can, however, strongly affect quality of life.
Does fibromyalgia get worse over time?
The course varies widely. Fibromyalgia is not progressive in the sense of tissue damage; symptoms often fluctuate in flares and can be influenced.
Guidelines and medical background
The linked guidelines and institutional resources explain the medical background. Editorial responsibility and any documented medical review are identified separately.
Editorial standards
- Medical background: 2 sources
- Educational context – not a substitute for medical diagnosis
- Links to related knowledge, questionnaires, and methodology