What should you know about nail signs of psoriasis?

Psoriasis can involve the nail matrix, which helps form the nail, or the nail bed beneath it. Matrix involvement may produce pits, grooves, or irregular growth. Nail-bed involvement may make the nail look yellow-brown, lift at the tip, or develop a thick layer underneath. Nail changes may occur with skin plaques, but they can also appear when skin findings are subtle. Fungal infection can resemble nail psoriasis, so appearance is not enough for diagnosis.

Keep nails short, file rough edges, and avoid cutting or pushing back the cuticles. Protect hands from repeated wet work and chemical exposure with suitable gloves. Do not pick at lifting nails or use harsh cosmetic products over damaged areas. A dermatologist can compare the nails with other signs such as Dry Skin, Itchy Skin, Skin Redness, or Scaly Skin and decide whether testing or psoriasis treatment is needed.

Book a review for new nail changes, several affected nails, persistent pain, or difficulty using the finger or toe. Seek prompt help for pus, spreading redness, marked swelling, fever, or a rapidly changing dark area. Mention any joint stiffness or swelling, because nail psoriasis can occur alongside joint symptoms and may need coordinated care.

Ask whether the pattern fits Psoriasis or a fungal infection, whether a sample is useful, how to protect the nail during treatment, and whether associated Cracked Skin, Peeling Skin, or Skin Rash changes alter the plan.