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(Arthritis, Psoriatic; PsA)
by Rebecca J. Stahl, MA
Psoriatic arthritis is a long-term condition that causes pain and swelling in the joints. Over time, it can cause be damaging to the joints and cause disability. It is associated with a skin condition called psoriasis, but not everyone that has psoriasis will develop psoriatic arthritis.
Psoriatic arthritis is an autoimmune disease which means the body attacks its own healthy tissue.
The exact cause of psoriatic arthritis is not known. It may be due to a combination of genetics and environmental triggers.
Risk Factors TOP
Factors that increase your chance of psoriatic arthritis includes having:
Psoriatic arthritis usually develops in people who already have psoriasis. Symptoms that may indicate the development of psoriatic arthritis include:
Your doctor will ask about your symptoms and medical history, especially information about your psoriasis. A physical exam will be done. Your doctor will rule out similar conditions with the physical exam.
To look for signs of an inflammation and cause of joint problem your doctor may order:
Imaging tests may also be done to look for damage to the joint. Images may include:
In addition to treating your psoriasis, your doctor will also create a treatment plan that focuses on your arthritis symptoms.
Depending on the severity of your symptoms, your doctor may recommend:
You may be referred to a physical or occupational therapist. These therapists can help you to improve your range of motion and your ability to do everyday activities.
Proper weight management is associated with improved symptoms. Talk to a dietitian who can help you lose excess weight and keep it off.
Working with a mental health therapist may also be helpful for your overall well-being. You can learn ways to better cope with your chronic condition.
If you have severe pain and disability, your doctor may recommend:
There are not current guidelines to prevent psoriatic arthritis because the cause is not known.
National Psoriasis Foundation
The Arthritis Society
Canadian Rheumatology Association
Psoriatic arthritis. Arthritis Foundation website. Available at:
...(Click grey area to select URL)
Accessed November 9, 2015.
Psoriatic arthritis. EBSCO DynaMed Plus website. Available at: http://www.dynamed.com/topics/dmp~AN~T113795/Psoriatic-arthritis. Updated April 11, 2016. Accessed September 30, 2016.
Psoriatic arthritis. National Psoriasis Foundation website. Available at: https://www.psoriasis.org/psoriatic-arthritis. Accessed November 9, 2015.
Last reviewed November 2015 by Michael Woods, MD
Last Updated: 12/20/2014
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