What is Pso?

Psoriasis [pronounced sorr-eye-iss-iss], also called Pso, is a chronic, or ongoing, disease that can appear anywhere on the body.1,2 Psoriasis most commonly affects the skin, but can also affect the nails.2 If you also have swollen, stiff or painful joints, you may have a form of inflammatory arthritis called psoriatic arthritis [pronounced sorr-eye-att-ick arth-rye-tiss] that can affect people with psoriasis.3,4

In Pso, skin cells are replaced every 4-7 days, instead of the usual 21-28 days5


In Pso, the body’s immune system gets ‘confused’ and attacks itself, making new skin cells grow and build up above and just below the surface of the skin.2,6,7 This creates thick red or swollen patches of skin covered in silvery scales called ‘plaques’ that you may recognise.7,8 These patches can
become inflamed, itchy and bleed,7,9 affecting either small or large areas of skin,8 but it’s important to remember that Pso isn’t contagious.5

How psoriasis works5,10


Pso affects at least 100 million people around the world1


Moderate to severe Pso increases the risk of heart disease and stroke.8 Psoriasis is also associated with diabetes, obesity, high blood pressure, inflammatory bowel disease, and there is a small increased risk of skin cancer.8


Types of Pso >


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1.    World Health Organization. Global report on psoriasis. 2016. Available at: apps.who.int/iris/bitstream/10665/204417/1/9789241565189_eng.pdf. Accessed June 2020.
2.    National Psoriasis Foundation. About Psoriasis. Available at: https://www.psoriasis.org/about-psoriasis. Accessed June 2020.
3.    Bagel J, Schwartzman S. Am J Clin Dermatol 2018;19:839-852.
4.    WebMD. Psoriatic arthritis. Available at: https://www.webmd.com/arthritis/psoriatic-arthritis/psoriatic-arthritis-the-basics Accessed: June 2020.
5.    PAPAA. Psoriasis: a simple explanation. Available at: https://www.papaa.org/learn-about-psoriasis-and-psoriatic-arthritis/common-questions/psoriasis-a-simple-explanation/ Accessed: June 2020.
6.    National Psoriasis Foundation. The immune system and psoriatic disease. Available at: https://www.psoriasis.org/research/science-of-psoriasis/immune-system Accessed: June 2020.
7.    NIH Medline Plus Magazine. Questions and answers about psoriasis. Available at: https://magazine.medlineplus.gov/article/questions-answers-about-psoriasis Accessed: June 2020.
8.    British Association of Dermatologists patient hub; Psoriasis: an overview. Available at: https://www.skinhealthinfo.org.uk/condition/psoriasis/ Accessed: June 2020.
9.    NHS. Psoriasis: symptoms. Available at: https://www.nhs.uk/conditions/psoriasis/symptoms/ Accessed: June 2020.
10.    Science Photo Library. Psoriasis infographic. Available at: https://www.sciencephoto.com/media/1003424/view Accessed: June 2020.