Psoriatic arthritis often affects the fingers, wrists, knees, ankles, or toes. But some people may also experience lower back pain and stiffness. Learn more.

Psoriatic arthritis can cause scaly skin, joint stiffness, and fatigue. Experts explain what causes psoriatic arthritis and the best treatment options.

Four years ago, X-rays showed arthritis in my spine and severe stenosis in lower lumbar (L4-L5). I’m at the point now where I can’t walk right, and it is affecting my relatively new hip.