Psoriasis is an autoimmune disease affecting the skin and joints. When it affects the skin it commonly appears as red scaly elevated patches called plaques. Psoriasis plaques frequently occur on the elbows and knees, but can affect any area of skin including the scalp and genital area. Psoriasis can vary in severity, from minor localised patches to extensive or even complete skin coverage. Fingernails and toenails are often affected. This is called psoriatic nail dystrophy.
Psoriasis can also cause inflammation of the joints. This is known as psoriatic arthritis. Psoriatic arthritis can affect any joint but is most common in the joints of the fingers and toes. This can result in a sausage-shaped swelling of the fingers and toes known as dactylitis. Psoriatic arthritis can also affect the hips, knees and spine. This is known as spondylitis.
Psoriasis affects both sexes equally, occurs at all ages and is prevalent in 2-3% of the Western populations.
Several factors are thought to aggravate psoriasis. These include stress and excessive alcohol consumption. Individuals with psoriasis may also suffer from depression and loss of self-esteem. As such, quality of...
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