What is the condition where there is a downward curling of the nails called?

• A. Paronychia
• B. Koilonychia
• C. Onychomycosis
• D. Leukonychia

Answer: (B)

The condition characterized by a downward curling of the nails is known as koilonychia. This nail disorder is often associated with iron-deficiency anemia but can also occur due to other systemic conditions. The unique shape of the nails in koilonychia resembles a spoon, which is why it’s commonly referred to as spoon nails.

In contrast, paronychia refers to inflammation of the skin around the nails, onychomycosis is a fungal infection of the nails, and leukonychia involves white spots or discoloration on the nails, unrelated to their curvature. Understanding these distinctions helps to accurately identify specific nail conditions and their underlying causes.