Nail Psoriasis (cont.)
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What Are Nail Psoriasis Causes and Risk Factors?
Psoriasis is not contagious. How psoriasis of the nails develops is not completely known. Nail involvement appears to result from a combination of genetic (inherited), immunologic, and environmental factors.
Psoriasis tends to run in families. About 40% of people with psoriasis have a first-degree relative who is known to have the condition. If both parents have psoriasis, a person's risk is up to 75%. Males and females are equally likely to have psoriasis. Psoriasis can occur in people of all races.
What Are Nail Psoriasis Symptoms and Signs?
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Usually, people who have nail psoriasis also have skin symptoms, too. If someone has psoriasis of the nails but does not have skin symptoms, the condition may be difficult for a doctor to diagnose, since the signs of psoriasis of the nails resemble those of fungal infection of the nails. It is important to inform the doctor if there is a family history of psoriasis.
The nail unit is made up of a nail plate, nail bed, hyponychium, nail matrix, nail folds, cuticle, anchoring portion, and ends of the finger bones. See each of these structures in images 1-2.
Someone might notice the following signs with psoriatic nails:
Medically Reviewed by a Doctor on 9/11/2017
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