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Onychotillomania in Adult
See also in: Nail and Distal Digit
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Onychotillomania in Adult

See also in: Nail and Distal Digit
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Contributors: Shari Lipner MD, PhD, Vivian Wong MD, PhD, Susan Burgin MD, Bertrand Richert MD, Robert Baran MD
Other Resources UpToDate PubMed

Synopsis

Onychotillomania, or nail-picking disorder, is a common and under-recognized disorder defined as self-induced trauma to the nail unit. The trauma may be caused by repeatedly rubbing the nail fold (habit tic deformity) or using instruments such as scissors, knives, or razor blades. Onychotillomania presents with characteristic or bizarre morphologies of the nail plate and damage to the nail bed and periungual skin depending on the type of self-destructive behaviors employed by the patient.

Patients may have insight into the self-induced nature of their disorder, or they may completely deny any involvement.

The condition has been associated with psychiatric disorders including obsessive-compulsive disorder, a specific phobia, body dysmorphic disorder, impulse control disorder, a delusional disorder, depression, or suicidal ideation. Onychotillomania may be one form of self-mutilating behavior seen in the Lesch-Nyhan and Smith-Magenis syndromes.

While data is sparse, there may be a slight female predominance. Age of onset is late childhood or early adolescence.

Codes

ICD10CM:
F95.9 – Tic disorder, unspecified

SNOMEDCT:
60259009 – Onychotillomania

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Last Reviewed: 12/11/2018
Last Updated: 12/11/2018
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Onychotillomania in Adult
See also in: Nail and Distal Digit
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Onychotillomania : Absent cuticle, Nail plate deformity, Enlarged lunula, Compulsive behavior, Self-injuring
Clinical image of Onychotillomania
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