Fibromyalgia is a common condition characterized by long-term, body-wide pain and tender points in joints, muscles, tendons, and other soft tissues. Fibromyalgia has also been linked to fatigue, morning stiffness, sleep problems, headaches, numbness in hands and feet, depression, and anxiety.
Fibromyalgia can develop on its own or along with other musculoskeletal conditions such as rheumatoid arthritis or lupus.
The cause of this disorder is unknown. Physical or emotional trauma may play a role in development of the syndrome. Some evidence suggests that fibromyalgia patients have abnormal pain transmission responses.
It has been suggested that sleep disturbances, which are common in fibromyalgia patients, may actually cause the condition. Another theory suggests that the disorder may be associated with changes in skeletal muscle metabolism, possibly caused by decreased blood flow, which could cause chronic fatigue and weakness.
Others have suggested that an infectious microbe, such as a virus, triggers the illness. At this point, no such virus or microbe has been identified.
Pilot studies have shown a possible inherited tendency toward the disease, though evidence is very preliminary.
Men and women of all ages get fibromyalgia, but the disorder is most common among women aged 20 to 50.
The overwhelming characteristic of fibromyalgia is long-standing, body-wide pain with defined tender points. Tender points are distinct from trigger points seen in other pain syndromes. Unlike tender points, trigger points can occur in isolation and represent a source of radiating pain, even in the absence of direct pressure.
Fibromyalgia pain can mimic the pain that occurs with various types of arthritis. However, the significant swelling, destruction, and deformity of joints seen in diseases such as rheumatoid arthritis does not occur with fibromyalgia syndrome alone.
The soft-tissue pain of fibromyalgia is described as deep-aching, radiating, gnawing, shooting or burning, and ranges from mild to severe. Fibromyalgia sufferers tend to wake up with body aches and stiffness.
For some patients, pain improves during the day and increases again during the evening, though many patients with fibromyalgia have day-long, unrelenting pain. Pain can increase with activity, cold or damp weather, anxiety, and stress.
Specific symptoms:
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Reviewer Info: Ariel D. Teitel, MD, MBA, Chief, Division of Rheumatology, St. Vincent?s Hospital, New York, NY. Review provided by VeriMed Healthcare Network. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.; ADAM Health Illustrated Encyclopedia, 02/22/2009 |