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  1. Fred Friedberg

Published Online: 30 JAN 2010

DOI: 10.1002/9780470479216.corpsy0355

Corsini Encyclopedia of Psychology

Corsini Encyclopedia of Psychology

How to Cite

Friedberg, F. 2010. Fibromyalgia. Corsini Encyclopedia of Psychology. 1–2.

Author Information

  1. Stony Brook University

Publication History

  1. Published Online: 30 JAN 2010


Fibromyalgia (FM) is a common musculoskeletal pain syndrome defined by at least three months of generalized bodily pain and tenderness (Wolfe et al., 1990). In addition, an FM diagnosis requires a physical examination finding of at least 11 out of 18 tender points, that is, specific regions of localized pain (e.g., neck and shoulders). The current definition of FM as established by the American College of Rheumatology replaced the previous term “fibrocitis.” The literal translation of FM is “pain in the muscles and fibrous tissue.”