What is it called when the nail is completely absent?

• A. Anonychia
• B. Hypotrichosis
• C. Onycholysis
• D. Leukonychia

Answer: (A)

The term used when the nail is completely absent is anonychia. This condition can occur for various reasons, including genetic factors, trauma, or underlying medical conditions. Anonychia signifies the lack of any nail plate on the fingers or toes, which is an important distinction in understanding nail disorders.

Hypotrichosis refers to a condition of having less hair than normal and is not related to nails. Onycholysis is the separation of the nail from the nail bed, which can occur for a variety of reasons but does not involve the complete absence of the nail. Leukonychia, on the other hand, is characterized by white spots or discoloration of the nails, which does not imply the absence of the nail itself. Understanding these terms is crucial for accurately identifying and describing nail-related health issues.