Plaque psoriasis:最常见的形式psoriasis-- about 80% of people withpsoriasishave this type.Plaquepsoriasiscan appear on anyskinsurface, although the knees, elbows,scalp, and trunk and are the most common locations. It is characterized by well-defined plaques of red raised skin. The flaky silvery white buildup on top of the plaques is called scale; it is composed of dead skin cells. This scale comes loose and sheds constantly from the plaques. Skin symptoms include pain, itching and cracking. The technical name forplaque psoriasisispsoriasis vulgaris(vulgaris means common).
