What is Psoriasis?


Psoriasis is a skin condition that makes cells build up quickly on the skin’s surface.   Extra skin cells appear thick and slivery and are usually dry and itchy. They can also be painful.  It is a long-term disease that is chronic and can be better or worse at various times.  The purpose of treatment is to stop the skin cells from growing quickly.

There are several type of psoriasis including:

  • Nail psoriasis
  • Plaque psoriasis (the most common form of psoriasis)
  • Guttate psoriasis (characterized by salmon-pink drops. From the latin word “gutta”=drop)
  • Scalp psoriasis
  • Inverse psoriasis (found in body’s skin folds)
  • Psoriatic arthritis (that might affect joints and create swelling and/or stiffness)
  • Pustular psoriasis (white blisters/pustules)
  • Erythrodermic psoriasis (severe inflammatory rash that may affect the entire surface of the skin)
Last Reviewed:
September 14, 2016
Last Updated:
February 06, 2017