COVID-19 updates
Featured conditions Brain tumor, breast cancer, colon cancer, congenital heart disease, heart arrhythmia. See more conditions.
Featured conditions
Mayo Clinic offers appointments in Arizona, Florida and Minnesota and at Mayo Clinic Health System locations.
Subscribe to Housecall
Our general interest e-newsletter keeps you up to date on a wide variety of health topics.
Psoriasis occurs when the life cycle of skin cells speeds up, resulting in a rapid buildup of rough, dead skin cells. These skin cells accumulate, forming thick silvery scales and dry, red patches that are sometimes itchy or painful. In some cases, pus-filled blisters appear.
Psoriasis patches can range from a few spots of dandruff-like scaling to major eruptions that cover large areas.
Though psoriasis signs and symptoms vary from person to person, psoriasis types are typically identified by their hallmark appearances. Here's a look at psoriasis photos, showing classic signs and symptoms.
Mayo Clinic does not endorse companies or products. Advertising revenue supports our not-for-profit mission.
Check out these best-sellers and special offers on books and newsletters from Mayo Clinic.