Psoriatic arthritis (PsA) is an autoimmune disease that affects your joints, causing pain, stiffness, and swelling as well as long-term damage. People commonly associate psoriatic arthritis with psoriasis, an autoimmune disease that affects the skin, causing flares of red, silvery plaques, although you don’t necessarily need to have psoriasis to develop PsA. Learn more about the causes, symptoms, and diagnosis of PsA.
Despite Having Joint Pain Symptoms, Psoriatic Arthritis Patients Often Wait 2+ Years for the Right Diagnosis 
Psoriasis, Psoriatic Arthritis, and Hair Loss: What Causes It, What to Do About It 
Your Psoriatic Arthritis Disease Activity May Predict Your Chances of Having a Heart Attack or Stoke 
Is It Possible to Have Psoriatic Arthritis Without Psoriasis? 
How to Care for Your Nails at Home if You Have Psoriasis or Psoriatic Arthritis 
7 Diseases That Can Mimic Psoriatic Arthritis — and Delay Your Diagnosis 
