Types of Psoriasis
Medical Author:
Cindy Li, DO
Coauthor:
Julie Bohlen
Medical Editor:
Dirk M Elston, MD
Medical Editor:
Mary L Windle, PharmD
Medical Editor:
William D James, MD
Types of Psoriasis OverviewPsoriasis is a chronic disease of the skin that affects approximately 5.5 million people in the United States. Typical characteristics of psoriasis are red, dry, patches of skin and inflammation. Psoriasis is not contagious and can be inherited. A brief overview of each type is provided below. Viewer Comments & ReviewsTypes of Psoriasis - ExperienceThe eMedicineHealth physician editors ask:What type of psoriasis do you have? |
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Types of Psoriasis
Psoriasis Overview
Psoriasis is a common and chronic skin disorder. Plaque psoriasis is the most common type of psoriasis and is characterized by red skin covered with silvery scales and inflammation. Patches of circular to oval-shaped red plaques that itch or burn are typical of plaque psoriasis. The patches are usually found on the arms, legs, trunk, or scalp but may be found on any part of the skin. The most typical areas are the knees and elbows.
Plaque psoriasis on the elbow. Image courtesy of Hon Pak, MD.
Plaque psoriasis on the back. Image courtesy of Hon Pak, MD.
Psoriasis is not contagious but can be inherited. Research indicates that the disease may result from a disorder in the immune system (See Causes).
Factors such as smoking, sun exposure, alcoholis...
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Psoriasis »
Psoriasis is a chronic, noncontagious, multisystem, inflammatory disorder.
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