What is the technical term for bitten nails?

The correct answer is "Onychophagy," which specifically refers to the habit of biting one's nails. This condition is often associated with stress, anxiety, or habitual behavior. Understanding the terminology in the context of nail care is crucial for professionals in the beauty and healthcare fields, as recognizing onychophagy can help in advising clients on nail health and potential treatments to break the habit.

The other terms refer to different nail conditions: "Onychocryptosis" relates to ingrown nails, "Onychatrophy" describes the abnormal thinning or loss of nails, and "Onychomycosis" refers to fungal infections of the nails. Knowing these distinctions is vital for properly addressing various nail health issues clients may experience.