What is a characteristic feature of nail psoriasis?

• A. It causes a fungal infection
• B. It results in tiny pitting or severe roughness
• C. It leads to nail shedding
• D. It makes the nails grow faster

Answer: (B)

Nail psoriasis is characterized by the presence of tiny pits and roughness on the nail surface. This pitting is a result of the rapid turnover of skin cells associated with psoriasis, which leads to the formation of small depressions in the nails. The severity of the roughness can vary, but it is a distinct feature that differentiates nail psoriasis from other nail disorders.

While nail shedding can occur in patients with psoriasis, it is not a defining characteristic. Fungal infections do not cause psoriasis; instead, they are a separate issue that affects nails differently. Lastly, nail psoriasis does not accelerate nail growth; rather, it often leads to changes or damage in the nail structure. Therefore, the presence of tiny pitting and roughness is the hallmark feature of this condition, making it the correct answer.