What is Pso?

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. Psoriasis most commonly affects the skin, but can also affect the nails. 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.

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

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. This creates thick red or swollen patches of skin covered in silvery scales called ‘plaques’ that you may recognise. These patches can become inflamed, itchy and bleed, affecting either small or large areas of skin, but it’s important to remember that Pso isn’t contagious.

diagram

How psoriasis works

Pso affects at least 100 million people around the world

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

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References

National Psoriasis Foundation. About psoriatic arthritis. Available at: https://www.psoriasis.org/about-psoriatic-arthritis Accessed: June 2020.
Arthritis Foundation. Psoriatic arthritis. Available at: https://www.arthritis.org/diseases/psoriatic-arthritis Accessed: June 2020.
Creakyjoints. Psoriatic arthritis flare-ups. Available at: https://creakyjoints.org/living-with-arthritis/psoriatic-arthritis-flare-ups/ Accessed: June 2020.
National Psoriasis Foundation. When to talk to your doctor. Available at: https://www.psoriasis.org/advance/talk-with-your-doctor-changing-treatments Accessed: June 2020.
Trettin B, et al. BJD 2020; DOI: 10.1111/bjd.18876.
Arthritis Foundation. How to achieve remission in psoriatic arthritis. Available at: https://www.arthritis.org/diseases/more-about/how-to-achieve-remission-in-psoriatic-arthritis Accessed: June 2020.
Ritchlin CT, et al. Ann Rheum Dis 2009;68:1387-94.
Haddad A, et al. Rambam Maimonides Med J 2017;8(1:e0004): 1-6.
Kurizky PS, et al. An Bras Dermatol 2015;90(3):367-75.
Coates LC and Helliwell PS. Clin Med 2017: 17(1):65-70.
AAD. Psoriatic arthritis treatment. Available at:https://www.aad.org/public/diseases/psoriasis/psoriatic-arthritis-treatment Accessed: June 2020.
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