Psoriasis causes skin cells to reproduce too fast, causing rough, scaly skin that can itch or burn. In the United States, there are about 150,000 new cases every year, affecting about two percent of the population, according to the Cleveland Clinic. Learn more about psoriasis and why the immune system causes psoriasis to appear on the skin. However, only 2 to 3 percent of the population develops the disease. Psoriasis is a complex, chronic, multifactorial, inflammatory disease that involves hyperproliferation of the keratinocytes in the epidermis, with an increase in the epidermal cell turnover rate (see the image below). Presents predominantly on the trunk; frequently appears suddenly, 2-3 weeks after an upper respiratory tract infection with group A beta-hemolytic streptococci; this variant is more likely to itch, sometimes severely. Conjunctival impression cytology: Increased incidence of squamous metaplasia, neutrophil clumping, and snakelike chromatin.
Psoriasis is a long-lasting autoimmune disease characterized by patches of abnormal skin. The disease affects 24 of the population. More than half of the psoriasis patients surveyed by the National Psoriasis Foundation (NPF) said their psoriasis was disfiguring. 2 percent African-American; 2 percent Asian-American and 1 percent Native American. Jose Luis Fernandez-Sueiro1, JA Pinto1, S. Pertega-Diaz2, Manuel Acasuso3 and Ignacio Herrero de Padura4, 1Rheumatology Division, Complejo Hospitalario Universitario La Coru a, La Coru a, Spain, 2Epidemiology and Statistics, Complejo Hospitalario Universitario La Coru a, La Coru a, Spain, 3Centro de Salud San Jos, Centro de Salud, San Jos, La Coru a, Spain, 4Centro de Salud San Jose, Centro de Salud, San Jos, La Coru a, Spain.
Psoriasis Psoriasis is a common chronic inflammatory disease of the skin with an average age of onset between 15-25 years. In the U.S. and Europe around 2-3 of the population is estimated to be affected by psoriasis. 1 National Psoriasis Foundation Statistics, About Psoriasis Statistics. Does geographical location make one prone for psoriasis, Are UV rays and increasing pollution responsible for increasing psoriasis incidence? Two studies that were conducted in Brazil assessed the prevalence of oral lesions in patients with psoriasis and observed that the evaluated patients exhibited no disease-specific oral lesions.
Country-specific prevalence and incidence statistics for Psoriasis using extrapolations to estimated populations and diagnosis rates. Hence, these two statistics types can differ: a short disease like flu can have high annual incidence but low prevalence, but a life-long disease like diabetes has a low annual incidence but high prevalence.