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            1. What Is Psoriatic Arthritis? Symptoms, Causes, Diagnosis, Treatment, and Prevention

              Psoriatic arthritis is a type of inflammatory arthritis that affects some people with psoriasis — a condition that causes the rapid buildup of skin cells. (1)

              It’s considered an autoimmune disease — which means your body’s immune system mistakenly attacks healthy tissue. (2)

              People with psoriatic arthritis experience both skin and joint problems. Symptoms may vary, depending on the case.

              Usually, skin issues develop first, and the arthritis comes later. But joint problems can occasionally crop up without signs of psoriasis. (3)

              There’s no cure for psoriatic arthritis, but there are plenty of therapies to help lessen the discomfort and joint damage.

              Common Questions & Answers

              Is psoriatic arthritis curable?
              There’s no cure for psoriatic arthritis, but there are plenty of therapies to help lessen the discomfort and joint damage.
              What are the symptoms of psoriatic arthritis?
              Not everyone with the disease experiences the same problems. Symptoms may include: stiff, painful joints; redness, heat, or swelling in the tissues surrounding the joints; and hand deformities.
              What causes psoriatic arthritis?
              Doctors aren’t exactly sure what causes psoriatic arthritis, but they do know it happens when your body’s immune system starts to attack healthy tissue. This causes an overproduction of skin cells and inflammation in your joints.
              Are there different types of psoriatic arthritis?
              There are five different types of psoriatic arthritis, including symmetric psoriatic arthritis, asymmetric psoriatic arthritis, spondylitis, arthritis mutilans, and distal psoriatic arthritis.
              How is psoriatic arthritis diagnosed?
              To diagnose psoriatic arthritis, your doctor will probably first perform a physical exam to look for swollen joints. You may undergo an X-ray, MRI, ultrasound, or CT scan. You might also need to have a blood test to rule out other related conditions, such as rheumatoid arthritis.

              Signs and Symptoms of Psoriatic Arthritis

              Psoriatic arthritis can cause a broad range of symptoms. Not everyone with the disease experiences the same problems, and some people have issues that are more severe than others.

              Symptoms may include:

              • Stiff, painful joints
              • Redness, heat, or swelling in the tissues surrounding the joints
              • Red skin with silvery-white, scaly patches
              • Itching or burning of the skin
              • Nails that crumble, become pitted, or lift from the nail beds
              • “Sausage-like” fingers or toes
              • Hand deformities
              • Foot, neck, or spine pain
              • Trouble bending and reduced range of motion
              • Inflammation of the eyes, which can cause irritation and vision problems
              • Fatigue (3,4,5)

              Learn More About Psoriatic Arthritis Symptoms

              Causes and Risk Factors of Psoriatic Arthritis

              Doctors aren’t exactly sure what causes psoriatic arthritis, but they do know it happens when your body’s immune system starts to attack healthy tissue. This faulty process causes an overproduction of skin cells and inflammation in your joints. (3)

              Experts believe that both genetic and environmental influences may be to blame for the immune system failure.

              Certain factors that may increase your risk include:

              • Having psoriasis?Being diagnosed with psoriasis is the greatest risk factor for developing psoriatic arthritis. (3)
              • Family history?About 40 percent of people with psoriatic arthritis have a family member with psoriasis or arthritis. (1)
              • An infection?Having a viral or bacterial infection may activate the immune system and trigger psoriatic arthritis in some people.
              • Age?Anyone can develop psoriatic arthritis, but it’s more common in those between ages 30 and 50.
              • Obesity?Being overweight puts more wear and tear on tendons, which may cause inflammation and trigger psoriatic arthritis. (6)

              Types of Psoriatic Arthritis

              Here are the five different types of psoriatic arthritis:

              • Symmetric psoriatic arthritis?As its name implies, this type affects joints on both sides of your body at the same time. About half of people with psoriatic arthritis have the symmetric kind.
              • Asymmetric psoriatic arthritis?With the asymmetric type, problems don’t develop in the same joints on both sides of the body. It occurs in about 35 percent of people with the disease and often causes more mild symptoms.
              • Spondylitis?This form of psoriatic arthritis is characterized by pain and stiffness in the neck and spine.
              • Arthritis mutilans?People with arthritis mutilans experience deformities in the small joints at the ends of the fingers and toes. This type is considered the most severe form of psoriatic arthritis, but it only affects about 5 percent of people with the condition.
              • Distal psoriatic arthritis?It causes inflammation and stiffness near the ends of the fingers and toes, while also affecting the nails. (2)

              How Is Psoriatic Arthritis Diagnosed?

              To diagnose psoriatic arthritis, your doctor will probably first perform a physical exam to look for swollen joints; skin or nail changes; eye problems; and joint tenderness.

              You may be asked to undergo an X-ray, MRI, ultrasound, or CT scan, so your physician can get a better look at your joints.

              Additionally, you might need to have a blood test to rule out other related conditions, such as rheumatoid arthritis, gout, and osteoarthritis. Some doctors will perform a test to analyze a sample of fluid in your joints.

              Occasionally, a skin biopsy is also required to confirm a psoriasis diagnosis. (1,3,7)

              Duration of Psoriatic Arthritis

              Psoriatic arthritis is considered a chronic disease.

              Symptoms typically worsen over time, but you might experience periods of improvement or remission. Often, these improvements are interrupted by episodes of intensified symptoms, known as “flares.”

              Flares may come and go. Some people experience frequent flares, while others rarely have them. (3,4)

              Identifying what prompts your flares can help you avoid the triggers. Common culprits include stress; skipping medications; certain foods; an illness or injury; and lack of sleep. (8)

              Treatment and Medication Options for Psoriatic Arthritis

              Your treatment plan will depend on the severity of your disease and your overall health.


              Some therapies for treating psoriatic arthritis include:

              Light Therapy

              During phototherapy, or light therapy, the skin is exposed to ultraviolet light. It can help reduce psoriasis symptoms. (9)


              In some cases, surgery may be needed to repair or replace joints that are severely damaged by psoriatic arthritis.

              Joint replacement surgery involves removing the diseased joint and replacing it with an artificial prosthesis. (3,7)

              Lifestyle Approaches

              Some lifestyle habits that may improve your pain and help you feel better overall include:

              • Exercise.?Regular physical activity can make your joints more flexible. Try walking, riding a bike, or swimming.
              • Maintain a healthy weight.?Being overweight can put more strain on your joints, which increases pain. Losing a few extra pounds can relieve this stress and give you more energy.
              • Don’t overdo it.?Psoriatic arthritis, and sometimes the medicines you take to treat it, can cause extreme fatigue. While being active is important, it’s also vital to rest when you’re tired. (1,3)

              Clinical Trials

              Researchers are always testing new therapies to help conditions like psoriatic arthritis. If you’re interested in participating in a clinical trial, visit ClinicalTrials.gov to search for studies in your area.

              Learn More About Psoriatic Arthritis Treatments

              Prevention of Psoriatic Arthritis

              Right now there’s no surefire way to prevent psoriatic arthritis. But research does suggest that people with the condition who seek treatment within six months may develop less damage and experience fewer long-term problems. (6)

              Complications of Psoriatic Arthritis

              If left untreated, psoriatic arthritis can cause joint damage and disability. (6)

              Sometimes, the condition leads to complications, such as:

              Research and Statistics: Who Has Psoriatic Arthritis?

              Psoriatic arthritis affects about 1.5 million people in the United States. (11)

              According to the Arthritis Foundation, about 30 percent of individuals with psoriasis develop psoriatic arthritis. (2)

              The condition usually affects those between ages 30 and 50, but it can start at any age, even in childhood. Men and women are equally at risk for having psoriatic arthritis. (1)

              Most people develop psoriasis first and then are diagnosed with psoriatic arthritis about 10 to 20 years later. (6)

              Related Conditions and Causes of Psoriatic Arthritis

              In addition to psoriasis, psoriatic arthritis is associated with a long list of other diseases.

              Symptoms of psoriatic arthritis are similar to those of rheumatoid arthritis, gout, and Reiter’s syndrome (a rare disorder characterized by arthritis and inflammation in certain areas of the body). (12)

              Psoriatic arthritis is also closely linked to inflammatory bowel disease, especially Crohn’s disease. (4) In fact, research has shown that people with psoriatic arthritis and Crohn’s share similar genetic mutations. In a study of women with psoriasis, about 10 percent developed an inflammatory bowel disease. This association was even greater in those with psoriatic arthritis. (10)

              Resources We Love

              Favorite Orgs for Essential Psoriatic Arthritis Info

              Arthritis Foundation

              The Arthritis Foundation provides credible information and resources for those battling psoriatic arthritis. Their site offers opportunities for advocacy and community outreach. We like that you can get personalized exercise advice based on your condition and fitness level.

              National Psoriasis Foundation

              This organization’s site is chock-full of information about psoriasis and psoriatic arthritis. You can request a free electronic psoriatic arthritis kit, which includes a flare tracker to help you manage your disease and pinpoint triggers. Their Navigation Center also offers free and personalized assistance for patients, families, and caregivers.

              American College of Rheumatology

              This long-standing professional membership organization provides breaking news about the latest advances in psoriatic arthritis and other rheumatic conditions. The American College of Rheumatology serves more than 8,400 physicians, health professionals, and scientists worldwide. Their Find a Rheumatologist link lets you locate a doctor who specializes in your condition.

              Spondylitis Association of America

              The Spondylitis Association of America offers resources for those with spondyloarthritis and related diseases, like psoriatic arthritis. From message boards to support groups, this organization has you covered.

              American Academy of Dermatology

              With more than 20,500 members, the American Academy of Dermatology is the largest, most influential dermatology group in the United States. The organization focuses on education and advocacy for a wide range of conditions that affect the skin, including psoriasis and psoriatic arthritis.


              CreakyJoints is a digital community for arthritis patients and their caregivers. They offer education, support, advocacy, and patient-centered research resources for people with all types of arthritis.

              Favorite Psoriatic Arthritis Online Support Networks


              TalkPsoriasis is the world’s largest online support community for people affected by psoriasis or psoriatic arthritis. Sponsored by the National Psoriasis Foundation in partnership with Inspire, this resource lets patients connect, exchange information, and make friends.

              Live Yes!

              The Live Yes! Arthritis Network, sponsored by the Arthritis Foundation, connects you with local, peer-led support groups. You can also exchange tips, ideas, and experiences with other people in the online forums.

              Favorite Annual Psoriatic Arthritis Patient Conference

              National Psoriasis Foundation Cure Symposium

              Each year, the National Psoriasis Foundation hosts a symposium that showcases the latest research. Attending a conference can help you connect with other patients and leading scientists who are studying cutting-edge treatments for your condition.

              Favorite Apps for Psoriatic Arthritis

              Track + React

              This app, developed by the Arthritis Foundation, allows you to track your symptoms, input your daily activities, and make charts that you can share with your doctor.


              Flaredown is designed to help you identify what triggers your psoriatic arthritis flare-ups. You can keep track of symptoms, medications, activities, diet, and weather conditions.

              Editorial Sources and Fact-Checking

              1. Psoriatic Arthritis. The American College of Rheumatology. 2019.
              2. What Is Psoriatic Arthritis? Arthritis Foundation.
              3. Psoriatic?Arthritis. Mayo Clinic.
              4. Psoriatic Arthritis Symptoms. Arthritis Foundation.
              5. Psoriatic?Arthritis. NIH: Genetics Home Reference. 2019.
              6. Psoriatic Arthritis. Johns Hopkins Arthritis Center.
              7. Psoriatic?Arthritis. MedlinePlus.
              8. Managing Psoriatic Arthritis Flares. Arthritis Foundation.
              9. Psoriatic Arthritis Treatment. Arthritis Foundation.
              10. Comorbidities Associated With Psoriatic Arthritis. National Psoriasis Foundation.
              11. Psoriatic Arthritis: Disease Overview. Johns Hopkins Rheumatology.
              12. Arthritis, Psoriatic. NORD: National Organization for Rare Disorders.
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