Psoriasis: key figures and prevalence

Psoriasis is a common skin condition affecting up to 2.2% of Americans, that means 7.5 million people in the United States have psoriasis.


It can start at any age, but most often develops in adults under 35 years old. The condition affects men and women equally.
The prevalence of psoriasis increases more rapidly in young female patients compared to young male patients and declines significantly in patients 70 years and older, regardless of sex. 

Article drafted under the supervision of Dr. Edouard Begon, Hospital Practitioner, Dermatologist at Pointoise Hospital (95) and at the Hospital St. Louis in Paris.
For further information:

Last updated: 9/27/18