Statistics on Psoriasis Psoriasis affects 5 million people in the United States.
Psoriasis affects men and women equally.
Between 150,000 and 260,000 new cases of psoriasis occur each year. An estimated 400 people are granted disability by the Social Security Administration because of their psoriasis each year. Annually, approximately 400 people die from psoriasis related causes. There are about 2.4 million visits to dermatologists each year by people with psoriasis. The average age at the onset of psoriasis is 22,5 years, though psoriasis has been seen at birth and as late as age 90.