Which condition is characterized by bitten nails?

The condition characterized by bitten nails is onychophagy. This practice of nail biting is prevalent in many individuals, often resulting from stress, anxiety, or habits formed during childhood. Onychophagy not only leads to the shortening of the nails but can also cause damage to the surrounding skin and may even lead to infections. Understanding that this condition arises from behavioral traits helps distinguish it from other nail conditions, which are often related to infections or structural abnormalities.

Onychosis is a broad term referring to any disease of the nails but does not specifically indicate nail biting. Onychomycosis pertains to fungal infections of the nails, which present different symptoms and require a different approach for treatment. Pincer nail is a specific nail deformity where the sides of the nail grow inward, creating a pinching effect, unrelated to the act of biting nails. Each of these terms highlights different aspects of nail health, clarifying the specific nature of onychophagy in the context of this question.