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Psoriasis is a chronic skin condition characterized by inflamed, red, raised areas that often develop as silvery scales on the scalp, elbows, knees, and lower back. Psoriasis is estimated to affect 7.5 million people in the US.
The cause of psoriasis is unknown; however, it is thought to be caused by abnormally fast-growing and shedding skin cells. The skin cells multiply quickly, causing the skin to shed every three to four days. Though not contagious, the condition is hereditary. Psoriasis is often recurrent and occurs in varying severities.
The following are the most common symptoms of psoriasis. However, each individual may experience symptoms differently, as psoriasis comes in several forms and severities. Symptoms may include:
The symptoms of psoriasis may resemble other skin conditions. Always consult your physician for a diagnosis.
When the condition progresses to the development of silvery scales, the physician can usually diagnose psoriasis with a medical examination of the nails and skin. Confirmation of diagnosis may be done with a skin biopsy (taking a small skin specimen to examine under a microscope).
Specific treatment for psoriasis will be determined by your physician based on:
The goal of treatment is to reduce inflammation and slow down the rapid growth and shedding of skin cells. At the present time, there is no cure for psoriasis. Treatment may include:
There is no known way to prevent psoriasis. Although it is a life-long condition, it often can be controlled with appropriate treatment. Keeping the skin clean and moist, and avoiding person-specific psoriasis triggers (excessive stress, for example) may help decrease flare-ups.