29/01/2026


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Onychophagia, commonly known as
chronic nail-biting, is a prevalent body-focused repetitive behavior (BFRB) affecting 20–30% of the population, often starting in childhood as a coping mechanism for stress, boredom, or anxiety. It involves persistent biting of the nails, cuticles, and surrounding skin, leading to potential infections, dental issues, and social embarrassment.
Key Aspects of Onychophagia:
Causes & Associations: Often linked to psychological distress, anxiety, or, in some cases, OCD-spectrum disorders. It is frequently a, often unconscious, habit that persists from childhood into adulthood.
Physical Consequences: Damages the nail matrix/bed, causes paronychia (skin infection around the nail), and can lead to tooth chipping or jaw issues (malocclusion).
Treatment Options:
Behavioral: Habit reversal training (identifying triggers, competing responses).
Barrier Methods: Bitter-tasting nail polishes.
Pharmacotherapy: In severe cases, medications like SSRIs (e.g., fluoxetine) or N-acetylcysteine may be used.
Prevalence: While common in children, it continues into adulthood for many, often underreported due to shame.
For severe or persistent cases, consulting a dermatologist or a mental health professional for a comprehensive approach is recommended