Psoriasis is a disease that causes chronic itchy or sore patches of thick, red, dry skin most often occuring on the elbows, knees, scalp, palms & feet. While any part of your body can be affected, psoriasis plaques most often occurs on the elbows, knees, scalp, back, face, palms, and feet. In people with psoriasis, the skin cells grow too quickly. The exact cause of psoriasis is not completely understood, but genetic and immune system abnormalities are believed to play key roles in the condition. Using steroid medication, for instance, may cause facial skin to thin, appear shiny and be prone to spider veins.
Psoriasis Triggers & Types