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Psoriasis is an immune-mediated disease that causes raised, red, scaly patches to appear on the skin.

Signs and Symptoms

  • Red or pink raised patches of rough, scaly skin
  • Dry or flaky skin that may crack and bleed
  • Skin that burns or stings
  • Skin that is itchy or sore
  • Thick, bumpy fingernails
  • Pus-filled blisters on the red patches of skin (in more severe cases)

Psoriasis on the hand

For more information on causes, diagnosis, and treatment of psoriasis, click here.