Primary fibronnyalgia (FM) is a condition affecting principally middle-aged women. characterized by a syndrome of generalized musculoskeletal pain. aches. stiffness. and tenderness at specific anatomical sites. This condition is considered primary when there are no obvious causes. Since it was first described. FM has become recognized as a fairly common rheumati«omplaint with a clinical prevalence of 6 to 20 percent. Additionally. FM has been associated with irritable bowel syndrome. tension headache. and chronic fatigue syndrome. Numerous treatment modalities have been attempt. to treat patierns with FM. but unfortunately the resulls have usually been poor. The primary reason for this lack of su«ess was undoubtedly due to our lack of understanding FMs etiology.