What term describes any disease, disorder or condition of the nail?

• A. Onychosis
• B. Onychopathy
• C. Onychitis
• D. Onychatrophy

Answer: (A)

The term describes any disease, disorder, or abnormal condition of the nail is onychosis. It serves as the broad umbrella for changes in color, texture, thickness, shape, or growth that aren’t normal. Other terms refer to more specific nail issues: onychatrophy means nail atrophy (thinning or loss of the nail), onychitis denotes inflammation of the nail, and onychopathy is a general reference to nail disease but isn’t as universally inclusive as onychosis. So onychosis is the best fit because it covers all possible nail conditions, not just a particular type.