Clin Dermatol 2019 May - Jun;37(3):268-277. Epub 2019 Jan 11.
Department of Medicine, Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada.
The self-induced dermatoses represent about 2% of dermatology patient visits, and include the recurrent body-focused repetitive behaviors (BFRB) (skin-picking or excoriation disorder, trichotillomania, onychophagia and onychotillomania), dermatitis artefacta, and features of other psychiatric disorders, for example, secondary to excessive grooming in body dysmorphic disorder, skin picking in delusional infestation, or secondary to self-harm in depressive disease. Among the BFRBs, onychophagia and onychotillomania are most likely to be associated with lesions that mimic other dermatologic conditions (eg, nail psoriasis, lichen planus, vasculitis, onychomycosis, melanoma). Dermatitis artefacta (DA) describes lesions that are self-inflicted with the intention of assuming a sick role in the absence of obvious external rewards. Read More