What are the symptoms of psoriasis? Psoriasis is accompanied by various symptoms. Psoriasis symptoms include scaly plaques, itching and swelling of associated skin, and inflammation. It usually presents with symmetrically distributed, reddish, and scaly pink plaques with well demarcated edges. The scaling is typically a silvery white except in the skin folds where it can appear more shiny and erythematous with a moist, peeling surface. The most common areas of involvement include the scalp, elbows, and knees. However, any portion of the skin can be involved. The plaques usually persist for a long time without any treatment. Itching may be mild, but can be severe in some patients, which leads to scratching and lichenification, describing thickened and leathery skin with increased markings. Painful fissures and cracking in the skin may occur. When plaques of psoriasis clear up, they may occasionally leak brown, hyper pigmented or pale marks that may take many months or years to fade. This is known as post-inflammatory hyperpigmentation.
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