Psoriasis
Description of Psoriasis:
Psoriasis (pronounced /səˈraɪəsɪs/) is a chronic, non-contagious autoimmune
disease which affects the skin and joints. It commonly causes red scaly patches
to appear on the skin. The scaly patches caused by psoriasis, called psoriatic
plaques, are areas of inflammation and excessive skin production. Skin rapidly
accumulates at these sites and takes on a silvery-white appearance. Plaques
frequently occur on the skin of the elbows and knees, but can affect any area
including the scalp and genitals. In contrast to eczema, psoriasis is more
likely to be found on the extensor aspect of the joint.
The disorder is a chronic recurring condition which varies in severity from
minor localized patches to complete body coverage. Fingernails and toenails are
frequently affected (psoriatic nail dystrophy) and can be seen as an isolated
finding. Psoriasis can also cause inflammation of the joints, which is known as
psoriatic arthritis. Ten to fifteen percent of people with psoriasis have
psoriatic arthritis.
The cause of psoriasis is not known, but it is believed to have a genetic
component. Factors that may aggravate psoriasis include stress, excessive
alcohol consumption, and smoking. There are many treatments available, but
because of its chronic recurrent nature psoriasis is a challenge to treat.
Specific Psoriasis Information
Articles, questions and answers.
