Lichen simplex, Neurotic excoriations, Prurigo nodularis, Acne excoriée, Hair plucking, Trichotillomania Trichophagia, Nail destruction, Onychotillomania, Lip-licking cheilitis, Knuckle biting, Disorders of body image:- body dysmorphic disorder (BDD) (synonyms dysmorphophobia, dermatological non-disease) Disturbance of body size and eating:- e.g. anorexia nervosa, bulimia Phobias:- mole phobia, venereophobia, wart phobia, erythrophobia, electrophobia and steroid phobia Obsessive–compulsive behaviours:- hand washing, hair plucking Atypical pain disorders:- glossodynia, vulvodynia and scrotodynia, anodynia