What is psoriasis?

Psoriasis is a chronic skin condition that forms scaly patches on the skin. Psoriasis lesions have well-defined borders with a pink-red base that are loosely covered by silver scales. Psoriasis commonly affects the elbows, knees, scalp, and fingernails, but can occur anywhere on the body. It can be associated with arthritis and heart disease. Unfortunately there is no cure for psoriasis but there are effective treatments that can improve skin symptoms.