Describe the epidemiology.
Prevalence: 2–3% [1]
Sex: ♀ > ♂ (2:1) [2]
Peak incidence: 20–50 years (risk of occurrence increases with age)
Describe the etiology.
The pathophysiology of fibromyalgia is not fully understood; its etiology is likely multifactorial. The interaction of the following factors may play a role:
Genetic predisposition
Autoimmune
Environmental triggers (e.g., physical or psychosocial stress)
Dysregulation of the neuroendocrine and autonomic nervous systems
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