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Causes could include:
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No known cause
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Psoriasis is a very common condition. The disorder may affect people of any age, but it most commonly begins between ages 15 and 35. It can appear suddenly or slowly. In many cases, psoriasis goes away and then flares up again repeatedly over time...
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The cause of psoriasis is unknown, but research suggests that an immune-system malfunction triggers the disease. Factors that increase the risk of developing psoriasis include: family history stress exposure to cold temperatures injury, illness, o...
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A medical history and physical examination is the basis for a diagnosis of psoriasis. In some cases, a microscopic examination of skin cells is also performed. Blood tests can distinguish psoriatic arthritis from other types of arthritis.
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The cause of psoriasis is, as of 2004, unknown, but research suggests that it is genetic and is related to the immune-system. Having both parents with the disease increases a child's risk by 50 percent. Psoriasis is usually cyclical, with episodes...
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