Which of the following nail diseases is NOT caused by fungus?

Which of the following nail diseases is NOT caused by fungus?

• A. Eggshell nails
• B. Fungal nail infection
• C. Onychomycosis
• D. Paronychia

Answer: (A)

Eggshell nails are characterized by their thin, fragile structure, which can be caused by various factors such as nutritional deficiencies, overuse of nail products, or underlying medical conditions, rather than a fungal infection. This distinguishes them from the other conditions listed, which are specifically related to fungal issues. Fungal nail infection and onychomycosis both refer to infections of the nail caused by fungi, indicating a direct link to fungal pathogens. Paronychia can also involve a fungal component, especially in cases where there is a disruption to the integrity of the skin around the nail. In summary, eggshell nails stand out as they do not stem from fungal causes, making them the correct choice in this context.

Eggshell nails are characterized by their thin, fragile structure, which can be caused by various factors such as nutritional deficiencies, overuse of nail products, or underlying medical conditions, rather than a fungal infection. This distinguishes them from the other conditions listed, which are specifically related to fungal issues.

Fungal nail infection and onychomycosis both refer to infections of the nail caused by fungi, indicating a direct link to fungal pathogens. Paronychia can also involve a fungal component, especially in cases where there is a disruption to the integrity of the skin around the nail. In summary, eggshell nails stand out as they do not stem from fungal causes, making them the correct choice in this context.