Don't delay your care at Mayo Clinic
Brain tumor, breast cancer, colon cancer, congenital heart disease, heart arrhythmia. See more 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 (suh-RIE-uh-sis) is the rapid buildup of rough, scaly skin that occurs when the life cycle of skin cells rapidly increases. The extra skin skin cells form thick, silvery scales and red patches that are itchy and sometimes painful.
The condition tends to flare up periodically and then subside for a time.
For some people, psoriasis is a mild nuisance. For others, it can be disabling, affecting extensive areas of skin for long periods and often occurring with a distinct type of arthritis (psoriatic arthritis). Topical medications and light therapy may help reduce signs and symptoms of the skin lesions.
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.
Mayo Clinic is a nonprofit organization and proceeds from Web advertising help support our mission. Mayo Clinic does not endorse any of the third party products and services advertised.
A single copy of these materials may be reprinted for noncommercial personal use only. "Mayo," "Mayo Clinic," "MayoClinic.org," "Mayo Clinic Healthy Living," and the triple-shield Mayo Clinic logo are trademarks of Mayo Foundation for Medical Education and Research.