What should you know about oligoarticular psoriatic arthritis?

The pattern may involve one side of the body more than the other and can affect larger joints such as a knee or ankle, although other joints may be involved. A person may also notice a whole swollen finger or toe, heel pain, nail changes, or psoriasis of the skin. Joint pain is a common presentation of psoriatic arthritis, but pain alone cannot identify its cause.

Inflammation can change over time, so a small number of affected joints does not mean the condition will always stay limited to those joints. An assessment considers the examination, skin and nail history, symptom pattern, and sometimes imaging or blood tests.

Keep a record of which joints swell, how long morning stiffness lasts, skin or nail changes, and whether symptoms affect walking, gripping, or sleep. This helps a rheumatology clinician distinguish inflammatory activity from an injury or wear-related problem.

Treatment may include [Anti-Inflammatory Medication](/treatments/non-surgical-orthopedics/anti-inflammatory-medication/) and a tailored activity plan. [Physiotherapy](/treatments/physiotherapy-and-rehabilitation/physiotherapy/) can support joint movement, muscle strength, pacing, and protection of an irritated joint. Do not stop prescribed medicine without discussing it with the prescriber.

Arrange medical review for persistent joint pain, recurrent swelling, or morning stiffness that limits normal activity. Seek urgent care for a suddenly hot, very swollen joint with fever or feeling unwell, because infection can resemble an inflammatory flare. New eye pain, marked redness, or light sensitivity also warrants prompt assessment.

Which joints appear inflamed? Could my skin, nail, or tendon symptoms be related? What monitoring will I need? Which exercises are suitable during a flare, and how will we judge whether treatment is working?