Implication of invalidation concept in fibromyalgia diagnosis.

This study elucidated the discriminatory power of invalidation in identification of FM from non-FM patients, especially when originated from spouse and family. Our results provide a basis to propose the invalidation as a salient component in the FM dictionary parallel to other famous FM symptoms. Key Points • The incorporation of newly highlighted social definition of pain seems warranted in the pain practice. • Despite proposing invalidation in painful conditions, its diagnostic role in FM remains unexplored. • Acknowledging of invalidation or social pain in polysymptomatology of FM could shift the paradigm of diagnosis of FM.