What sign is characteristic of nail psoriasis?

The presence of tiny pits or roughness on the surface of the nails is a hallmark sign of nail psoriasis. This condition involves an autoimmune response that leads to changes in the nail's texture and appearance. In nail psoriasis, the tiny pits occur because the growth of the nail is disrupted, causing small depressions to form. This roughness can affect the overall smoothness and health of the nails, and it may vary in severity from person to person.

The characteristic pitting is a key factor in distinguishing nail psoriasis from other nail conditions, as it directly reflects the disease's impact on the nail matrix. Understanding this specific symptom is crucial for proper diagnosis and management of the condition. Recognizing nail psoriasis through its distinctive signs helps nail technicians and other professionals provide appropriate care and advice to clients who may be affected by this condition.