Fibromyalgia can be difficult to diagnose. Many of the symptoms are similar to other disorders. A physical exam will be done. Your doctor will discuss your symptoms and check for tender (trigger) points to confirm the diagnosis. Tender points are areas of pain throughout your body. Symptoms of chronic and widespread pain must be present for over three months.
Testing for Tender (“Trigger”) Points
—According to criteria established by the American College of Rheumatology, there are 18 specific tender points around the body that are potentially painful when palpated in people with fibromyalgia. Most healthy people have only three tender points. These points are located around the neck, shoulder, chest, hip, knee, and elbow regions.
A diagnosis of fibromyalgia is usually made if 11 of these 18 points result in pain when palpated.
Blood Tests
—Blood tests cannot identify fibromyalgia. However, your doctor may order these tests to rule out other illnesses that have similar symptoms, such as
lupus
,
Lyme disease
,
rheumatoid arthritis
, and other musculoskeletal disorders.