Psoriasis is a disease whose main symptom is gray or silvery flaky patches on the skin which are red and inflamed underneath. In the United States, it affects 2 to 2.6 percent of the population, or between 5.8 and 7.5 million people. Commonly affected areas include the scalp, elbows, knees, navel, palms, ears and groin. Psoriasis is autoimmune in origin, and is not contagious.
Sites listed here will be those offering unique and non-commercial information about the disease.

Product sites belong in Shopping/Health/Conditions_and_Diseases/Skin_Disorders/Psoriasis/ .

Sites listed here will represent official organizations associated with psoriasis.

Consumer groups and support groups are represented in the Support_Groups subcategory.

Sites listed here will be personal accounts of living with the disease, usually written by the patient themselves.
Sites listed here will focus on research findings related to psoriasis, such as journal articles.

Research organizations are listed in the Organizations subcategory.

These groups, communities, or meeting places provide an opportunity for people with a common experience (such as a condition or disease, or a care-giving role) to share their concerns, and to seek and offer information and advice.
Sites listed here will represent support networks with a physical address and/or a web presence. Those with a physical address may also be submitted to the relevant Regional subcategory.

Official organizations are listed in the Organizations subcategory.