Leukonychia is characterized by which of the following?

• A. Green discoloration of the nail
• B. Whitish discoloration or white spots
• C. Extreme brittleness
• D. Complete nail shedding

Answer: (B)

Leukonychia is a condition that manifests as whitish discoloration of the nails, typically presenting as white spots or patches. This condition can result from various factors, including minor trauma to the nail matrix, allergic reactions, or underlying health issues. The appearance of these white marks is often a temporary condition, resolving over time as the nail grows out.

The other options describe different nail conditions or changes. For example, green discoloration can indicate a fungal infection or bacterial contamination, while extreme brittleness often relates to dehydration of the nails or systemic health conditions. Complete nail shedding, known as onycholysis, is associated with other specific causes such as severe trauma or autoimmune disorders. Understanding these distinctions helps in identifying and addressing nail health issues effectively.