Who gets psoriatic arthritis?
Most people who get psoriatic arthritis have one or more of the following:
Psoriasis (plaque, guttate, or pustular).
Psoriasis that affects their nails.
Blood relatives who have psoriatic arthritis.
Psoriatic arthritis usually appears about 5 to 12 years after psoriasis begins. It is equally common in men and women. Most people develop it between 30 and 50 years of age. But psoriatic arthritis can begin at any age. Children may even get psoriatic arthritis.
It is important to know that not everyone who gets psoriasis will eventually develop psoriatic arthritis. There is no way to tell who will get psoriatic arthritis. You should tell your dermatologist if you have joint pain or stiffness when you wake up, or swollen joints that come and go. These are often the earliest symptoms.
What causes psoriatic arthritis?
We still do not know everything that happens inside the body to cause psoriatic arthritis. We know that like psoriasis, psoriatic arthritis is an autoimmune disease. When a person has an autoimmune disease, the body mistakes something inside as a foreign object. In the case of psoriatic arthritis, the body mistakes joints and tendons as foreign.
Like psoriasis, psoriatic arthritis also involves your:
Learn more about psoriatic arthritis
Psoriatic arthritis: Signs and symptoms
Psoriatic arthritis: Diagnosis, treatment, and outcome
Psoriatic arthritis: Tips for managing
HomeAdvertising, marketing and sponsorshipsLegal noticeSite map Copyright © 2013 American Academy of Dermatology. All rights reserved.
Reproduction or republic
early one in four Americans with the chronic skin condition known as psoriasis may also have undiagnosed psoriatic arthritis, according to a new study.
This is in addition to the 2 million people in the United States who have been diagnosed with the disease, a type of inflammatory arthritis that affects the joints and tendons and can lead to joint destruction and disability.
For the study, the National Psoriasis Foundation conducted phone and online interviews of 477 people with psoriasis and psoriatic arthritis. The investigators found that 22 percent of the participants who had been diagnosed with psoriasis-only had significant symptoms of psoriatic arthritis: joint pain, pain that shifts from one joint to the other, joints that felt hot to the touch and very swollen fingers and toes.
Psoriasis is the most common autoimmune disease in the United States, affecting as many as 7.5 million people.
The study also found that diagnosis of psoriatic arthritis is delayed in many people. Among the participants with known psoriatic arthritis, 44 percent said it took a year or longer for them to be diagnosed and nearly 30 percent said it took two years or longer for them to be diagnosed.
“It’s vital to diagnose and treat psoriatic arthritis early in order to prevent or slow joint damage,” Dr. Mark Lebwohl, chair of the National Psoriasis Foundation Medical Board, said in a foundation news release.
The findings prompted the medical board to issue a set of recommendations for psoriasis patients and doctors.
According to the National Psoriasis Foundation Medical Board, people with psoriasis and/or a family history of the disease should monitor themselves and contact their doctor if they experience one or more of the following symptoms:
- Pain, swelling or stiffness in one or more joints
- Joints that are red or warm to the touch
- Frequent joint tenderness or stiffness
- Sausage-like swelling in one or more of the fingers or toes
- Pain in and around the feet and ankles
- Changes to the nails, such as pitting or separation from the nail bed
- Pain in the lower back, above the tailbone.
“Up to 30 percent of people with psoriasis develop psoriatic arthritis,” Dr. Elaine Husni, a rheumatologist and psoriatic arthritis expert with the Cleveland Clinic in Ohio, said in the news release. “These guidelines could help millions of Americans with psoriasis recognize the signs of psoriatic arthritis early, so they can seek medical attention for a diagnosis and begin treatment. If untreated, the joint damage can be disabling.”