WHAT IS PSORIATIC ARTHRITIS?

A condition that affects both joints and skin—learn how to recognize the symptoms

Actor portrayal of a SOTYKTU® patient with psoriatic arthritis on his arm.

PSORIATIC ARTHRITIS DEFINED

Psoriatic arthritis is a chronic inflammatory disease that happens when the immune system becomes overactive. This causes inflammation, especially in the joints and skin. Over time, this inflammation can lead to joint symptoms, swelling, tenderness, and skin plaques.

Psoriatic arthritis and plaque psoriasis are part of the same disease family—and SOTYKTU is approved to treat each.

Close-up of a patient’s hand with psoriatic arthritis, showing visible swelling and joint inflammation

WHAT HAPPENS INSIDE THE BODY WITH PSORIATIC ARTHRITIS?

The symptoms you feel and see are only part of the story.

Understanding what causes psoriatic arthritis can help explain how it affects the body and the symptoms it causes. Psoriatic arthritis is a chronic inflammatory disease that happens when the immune system becomes overactive. This causes inflammation, especially in the joints and skin. Over time, this inflammation can lead to symptoms such as joint pain, swelling, and tenderness.

Overactive immune system causes inflammation that may lead to joint and tendon swelling, pain, stiffness, and skin plaques.

WHAT CAUSES PSORIATIC ARTHRITIS?

The exact cause of psoriatic arthritis isn’t fully understood, but it’s believed to be a combination of genetic and environmental factors.

Genetics
If you have a family history of psoriasis or psoriatic arthritis, you’re more likely to develop it yourself.

Immune System
Psoriatic arthritis is a condition that affects the immune system, causing it to become overactive and leading to inflammation in the joints and skin.

Environmental Factors
Infections or physical trauma may trigger psoriatic arthritis in people who are already genetically predisposed.

SYMPTOMS OF PSORIATIC ARTHRITIS

The symptoms of psoriatic arthritis can look different from person to person.

Psoriatic arthritis is an inflammatory condition that can affect both joints and skin.

Skin symptoms often appear before joint symptoms
Psoriatic arthritis can cause joint symptoms, stiffness, and tenderness that may come and go
Up to 30% of people with plaque psoriasis will go on to develop psoriatic arthritis

Psoriatic arthritis and plaque psoriasis are part of the same disease family, which is why some adults may notice symptoms in joints and skin.

Possible symptoms of psoriatic arthritis can be joint symptoms, tenderness, skin plaques, dactylitis, swelling, and pain.

HOW IS PSORIATIC ARTHRITIS DIAGNOSED?

There’s no single test to diagnose psoriatic arthritis. Your doctor will likely use a combination of:

Physical Exam
Checking joints for swelling, tenderness, and range of motion, as well as skin and nail changes.

Medical History
Your doctor may ask about any history of psoriasis or arthritis among you and your family.

Imaging Tests
X-rays, MRIs, and ultrasounds can help detect joint damage, inflammation, and other abnormalities.

Blood Tests
A blood sample may be taken to check for other conditions like rheumatoid arthritis.

Early diagnosis and treatment can help prevent joint damage, so don’t wait to schedule an appointment.

The goal of psoriatic arthritis treatment is to reduce pain and inflammation, control skin symptoms, prevent joint damage, and better manage the impact of psoriatic arthritis on daily life.

It’s important to work closely with your healthcare provider to develop a treatment plan that’s right for you. A thorough exam is important because the symptoms of psoriatic arthritis can be similar to other conditions. They will consider the severity of your symptoms, your overall health, and your preference when recommending treatment options.