Fibromyalgia

Description

Diagnosis

There is no unequivocal objective method for diagnosing fibromyalgia. The criteria used for studying fibromyalgia are very helpful, particularly if the patient does not have any accompanying disorder, such as depression or arthritis, which could complicate the diagnosis. Failure to meet the criteria, however, does not rule out fibromyalgia. It should be suspected in any patient with muscle and joint pain when no identifiable cause has been found.

Medical and Personal History

A physician should always take a careful personal and family medical history, which would include a psychological profile and a history of any factors that might be indicative of disorders other than fibromyalgia. Such factors might include recent weight change, physical injuries, infectious diseases, muscle weakness, rashes, and any instances of sexual, physical, or substance or alcohol abuse. The patient should report any drugs being taken, including vitamins and over-the-counter or herbal medications.

Physical Examination

Pressure on Tender Spots. Any physical examination for fibromyalgia requires that the physician press firmly on all potential tender spots. They must be painful when pressed, not simply tender. In addition, for a diagnosis of fibromyalgia, these tender sites are not typically accompanied by signs of inflammation, such as redness, swelling, or heat in the joints and soft tissue. The pressure points may also change in location and sensitivity over time. A physician, then, may re-check pressure points that do not respond the first time in patients who have other significant symptoms.

Detection of Other Causes of Symptoms. A physical examination also includes scrutiny of nails, skin, mucous membranes, joints, spine, muscles, and bones to help rule out arthritis, thyroid disease, and other disorders.

Other Tests

There are no blood, urine, or other laboratory tests that can provide a diagnosis of fibromyalgia. If such tests show abnormal results, then the physician should look for other disorders. Tests for specific diseases depend on family histories and other symptoms. They may include thyroid and liver function tests, blood count, tests of certain antibodies, and sedimentation rate. Follow-up psychological profile testing may be suggested if laboratory results do not indicate a specific disease.