Psoriatic arthritis is a systemic rheumatic disease, which tend to cause body tissues inflammation. Inflammation can occur in the spine, body joints, organs or skin. Psoriasis arthritis can occur at any age, but usually from age 25 to age 50.
When psoriatic arthritis occurs, the affected joints become inflammed and painful. Psoriasis arthritis typically affects the following body joints: elbows, knees, hands, feet, and spine. It can also affect tendons and ligaments.
some common symptoms include: joint stiffness, back and neck pains, swollen finger or toe joints, and nail thickening. The affected joint skin often has red and silvery scales or plaques.