Fibromyalgia is sometimes a beneficial diagnosis.
 Fibromyalgia could be misdiagnosed in cases of early undiagnosed rheumatic diseases such as preclinical rheumatoid arthritis, early stages of inflammatory spondyloarthritis, polymyalgia rheumatica, myofascial pain syndromes and hypermobility syndrome
=== Medications ===A few countries have published guidelines for the management and treatment of fibromyalgia

