The diagnosis of fibromyalgia is made in patients with a history of diffuse musculoskeletal pain and which of the following physical findings:

Fibromyalgia is a syndrome of known and probably multifactorial cause, which leads to diffuse musculoskeletal pain. Patients often note fatigue, paraesthesia, subjective swelling, and sleep dismrbance. In general, their physical exam is normal. The have tenderness in at least 11 of 18 proscribed tender areas. It is unknown what these areas represent, but their occurrence and reproducibility have been well-documented.