Onychotillomania - Nail and Distal Digit
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.
F95.9 – Tic disorder, unspecified
60259009 – Onychotillomania
Differential Diagnosis & Pitfalls