Functional Itch Disorder or Psychogenic Pruritus: Suggested Diagnosis Criteria From the French Psychodermatology Group
Laurent Misery, Sophie Alexandre, Sabine Dutray, Myriam Chastaing, Sylvie G. Consoli, Hubert Audra, Domitille Bauer, Sylviane Bertolus, Valérie Callot, Fabienne Cardinaud, Eliane Corrin, Nathalie Feton-Danou, Robert Malet, Sylviane Touboul and Silla M. Consoli
"Functional itch disorder or psychogenic pruritus is a poorly defined diagnosis. This paper sets out the proposed diagnostic criteria of the French Psychodermatology Group (FPDG). There are three compulsory criteria: localized or generalized pruritus sine materia, chronic pruritus (>6 weeks) and the absence of a somatic cause. Three additional criteria from the following seven items should also be present: a chronological relationship of pruritus with one or several life events that could have psychological repercussions; variations in intensity associated with stress; nocturnal variations; predominance during rest or inaction; associated psychological disorders; pruritus that could be improved by psychotropic drugs; and pruritus that could be improved by psychotherapies. "