What are the signs of psoriatic arthritis on nails?

Psoriatic arthritis (PsA) is a form of arthritis that affects some people with psoriasis. It causes inflammation, pain, and swelling in the joints, as well as other symptoms. One of the areas that PsA can specifically impact is the nails. Paying attention to the signs of psoriatic arthritis on the nails can help with early detection and treatment. This article will explore the common signs to look out for on the nails.

What are the signs of psoriatic arthritis on nails?

Pitting

One common sign of psoriatic arthritis on the nails is pitting. Pitting refers to the formation of small depressions or pits on the surface of the nails. These pits may be shallow or deep and can give the nails a rough and uneven appearance. Pitting occurs due to damage to the nail matrix, which is the area responsible for nail growth. PsA-related inflammation can disrupt the normal growth of the nails, leading to the development of pits. Presence of pitting on multiple nails can be a strong indication of psoriatic arthritis.

Onycholysis

Onycholysis is another sign of psoriatic arthritis that can be observed on the nails. It refers to the separation of the nail from the nail bed. Affected nails may appear lifted or detached from the underlying skin. Redness and inflammation can also be present in the affected area. Onycholysis can be painful and may cause discomfort or sensitivity in the nails. In psoriatic arthritis, onycholysis can be a result of inflammation and damage to the nail matrix. Early detection and treatment of onycholysis can help prevent further complications of psoriatic arthritis.

Nail Discoloration

Nail discoloration is a common symptom of psoriatic arthritis that can affect the appearance of the nails. The nails may develop yellow, brown, or white patches or spots. Discoloration can occur due to the inflammation and damage caused by PsA. In some cases, the entire nail may become discolored or have an unusual color. Changes in nail color can be an early sign of psoriatic arthritis and should not be ignored.

Nail Thickening

Psoriatic arthritis can also lead to nail thickening, which is known as onychhypertrophy. Thickened nails can become rough, brittle, and difficult to manage. They may also develop an abnormal shape or curvature. Nail thickening can occur due to the inflammation and overgrowth of skin cells around the nails. It is important to address nail thickening in psoriatic arthritis to prevent further deterioration of the nails.

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