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    Nail Psoriasis - Topic Overview

    Many people who have psoriasis have nail changes. This can involve:

    • Pitting on the surface of the nail.
    • Defects in the nail, such as ridges or crumbling nails.
    • Yellowish color to the toenails (and sometimes fingernails).
    • Thickening of the fingernails or toenails.
    • Spots under the fingernails, such as yellow-red patches.
    • Separation of the nail from the nail bed.
    • Total loss of the nail bed.

    Nail changes rarely happen without other signs of psoriasis. And sometimes changes in the nails can confirm a diagnosis of psoriasis. Nail problems happen most often in people with psoriatic arthritis.

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    Seven Psoriasis Triggers

    While the underlying cause of psoriasis stems from your body's immune system, certain triggers can make symptoms worse or cause flare-ups. These psoriasis triggers include: Cold and dry weather. Such weather can dry out your skin, which makes the chances of having a flare-up worse. In contrast, hot, sunny weather appears to help control the symptoms of psoriasis in most people. Stress. Having psoriasis can itself cause stress, and patients often report that outbreaks of symptoms...

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    Psoriasis of the nail can be very hard to treat, and treatment is not always successful. Treatment is aimed at the white half-moon-shaped root of the nail (the matrix).

    Treatments include some of the same topical and systemic therapies that are used to treat psoriasis that affects the skin. In some cases, medicines can be injected into the nail bed.

    Treatments take time to work, and you may not see improvement for months. New, healthy nails may need up to a year to grow.

    WebMD Medical Reference from Healthwise

    Last Updated: March 12, 2014
    This information is not intended to replace the advice of a doctor. Healthwise disclaims any liability for the decisions you make based on this information.
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