National Occupational Competency Testing Institute (NOCTI) Cosmetology Practice Exam

Bitten nails are scientifically referred to as what?

1. Onychomycosis

2. Onychophagy

3. Onychocryptosis

4. Hypertrophy

The correct answer is: Onychophagy

Bitten nails are scientifically referred to as onychophagy. This term derives from the Greek word "onych" meaning nail and "phagy" meaning eating. Onychophagy describes the habitual biting of one's nails, a behavior often associated with stress, anxiety, or nervous habits. Understanding this condition is essential in cosmetology, as nail technicians may encounter clients who struggle with nail biting and can provide guidance on nail care or suggest treatments to help manage the habit. Other terms like onychomycosis refer to fungal infections of the nails, onychocryptosis relates to ingrown nails, and hypertrophy describes an increase in the size of tissue or organ, which are not applicable in the context of nail biting. This highlights the importance of correctly identifying nail conditions for appropriate interventions and care.