Psoriatic arthritis is a condition that combines the swollen, sore joints of arthritis with psoriasis. Psoriasis typically causes itchy, scaly red patches to appear on the skin and scalp. There are five types of psoriatic arthritis in which your doctor will help diagnose. These include:
Symmetric psoriatic arthritis
Asymmetric psoriatic arthritis
Distal interphalangeal psoriatic arthritis
Spondylitis psoriatic arthritis
Psoriatic arthritis mutilins