What is the medical term for nail biting?

• A. Onychophagia
• B. Onychomycosis
• C. Onycholysis
• D. Onychogryphosis

Answer: (A)

The medical term for nail biting is onychophagia. This term derives from the Greek words "onycho," meaning nail, and "phagia," meaning to eat or consume. Onychophagia is classified as a body-focused repetitive behavior, often linked to stress, anxiety, or boredom, where individuals habitually bite their nails, sometimes leading to damage of the nail structure and surrounding tissue.

The other terms refer to different nail conditions: onychomycosis relates to fungal infections of the nails, onycholysis describes the separation of the nail plate from the nail bed, and onychogryphosis refers to an abnormal thickening and curvature of the nails. Each of these conditions has distinct characteristics and implications for nail health, underscoring the specific nature of onychophagia as a behavioral issue rather than a disease or structural abnormality.