Psoriatic arthritis is a form of arthritis that largely affects individuals with psoriasis. Psoriasis is a condition in which red patches appear on the skin and scalp.

Psoriatic arthritis or PsA is a condition of the autoimmune form of arthritis that causes joint inflammation followed by itchy and red patches on the skin.

In the first place, psoriatic arthritis affects your skin first, and later signs of arthritis can be experienced. Rarely, joint problems can be experienced before the skin patches appear.

Pain, stiffness, and swelling in the joints are some common signs to tell you of psoriatic arthritis. PsA can affect large or small joints, including your fingertips, but less commonly, it also affects the spine. Just as in psoriasis, the signs may flare up with periods of remission.