Historical evolution of the concept of fibromyalgia: the main stages

The concept of fibromyalgia is fairly recent, by evolving from previous notions such as muscular rheumatism and fibrositis. In this concise report the main stages leading to the development of the concept of fibromyalgia are sketched out, beginning from the notions of fibrositis nodules, trigger points and myofascial pain, up to the most recent knowledge including this clinical condition in the cluster of central sensitivity syndromes.