Assessing workers with fibromyalgia: what should occupational physicians know?

Fibromyalgia is a chronic pain syndrome with a complex multifactorial etiopathogenesis that more frequently affects women. Although widespread pain is the dominant feature, fibromyalgia incorporates a wide variety of symptoms, such as fatigue, unrefreshed sleep, and cognitive and mood disorders. Central sensitization to pain is a key element in the pathophysiology of this syndrome. Due to its prevalence and repercussions on quality of life and work productivity, fibromyalgia is a common condition in occupational medicine outpatient clinics. Thus, physicians must be attentive to its symptoms to facilitate diagnosis and management. This article will address basic topics about fibromyalgia, including: epidemiology, predisposing factors, pathophysiological considerations, clinical manifestations, classification criteria, differential diagnosis, basic principles of treatment, and the contribution of occupational physicians.