Psoriasis is a non-curable, chronic inflammatory skin condition in which skin cells multiply at a much faster rate than normal. Instead of shedding, these skin cells accumulate on the surface of the skin resulting in thickened, scaly patches. These patches tend to show up most commonly on the elbows, knees, and scalp. Up to 3% of the U.S. population is affected by psoriasis.
The exact causes of psoriasis are still unknown, but likely involve a combination of genetic factors and differences in immune response. Outbreaks of psoriasis can be triggered by the weather,illness, stress, or injury to the skin. Numerous treatments can be used to treat psoriasis including topical medications, oral medications, light treatments, and injections or infusions. With the proper treatment, psoriasis is controllable and prognosis is good. The National Psoriasis Foundation is a good resource for psoriasis patients.