There are a variety of types, but the treatments are the same for all of them. The types of PsA differ based on the location of the joint inflammation, such as the limbs versus the spine, how many joints are impacted, and the severity of the joint destruction. The types include:Symmetric PsA: both sides of the body, similar to rheumatoid arthritisAsymmetric PsA: a joint or joints on one side of your body Distal interphalangeal predominant PsA: the last digit in the fingers and toesSpondylitis PsA: mainly the spinePsoriatic arthritis mutilans: more erosive and destructive arthritis