3 compulsory criteria: |
• Localized or generalized pruritus sine materia (without primary skin lesion) |
• Chronic pruritus (> 6 weeks) |
• No somatic cause |
3/7 optional criteria: |
• 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 disorder |
• Pruritus that could be improved by psychotropic drugs |
• Pruritus that could be improved by psychotherapies |
Functional itch disorder |
Skin psychogenic pain |
Skin psychogenic paraesthesia |
Vulvodynia |
Stomatodynia, glossodynia |
Some trichodynias |
Some reactive/sensitive/hyper-reactive/irritable skins |