What is the medical term for a fungal infection of the nail?

• A. Onychomycosis
• B. Paronychia
• C. Dermatitis
• D. Tinea

Answer: (A)

Onychomycosis is the medical term specifically used to describe a fungal infection of the nail. This condition often results in changes to the nail's appearance, such as discoloration, thickening, or brittleness. The term itself derives from the Greek words "onycho," meaning nail, and "mycosis," which refers to a fungal infection. Understanding the terminology is crucial in dermatology and podiatry, as it helps in accurately diagnosing and treating various nail disorders.

In contrast, paronychia refers to an infection of the skin surrounding the nail, dermatitis describes inflammation and irritation of the skin and does not specifically relate to fungal infections, and tinea is a broader term that refers to various fungal infections of the skin and nails, but does not exclusively designate nail infections. Hence, onychomycosis is the most precise term for a fungal nail infection.