What should you know about polyarticular psoriatic arthritis?

Psoriatic arthritis is linked with psoriasis but joint symptoms may appear before, after or alongside skin changes. In the polyarticular pattern, inflammation involves multiple joints and can affect hands, feet, knees or other areas. Symptoms may vary from one joint to another and can include warmth, tenderness, reduced movement and morning stiffness. A clinician considers your symptoms, examination, skin and nail findings, and sometimes blood tests or imaging because several conditions can look similar.

Arrange an assessment if swelling or stiffness persists, returns, or interferes with walking, gripping or sleep. Keep a brief record of which joints are affected, how long morning stiffness lasts, and any psoriasis or nail changes. Treatment may combine prescribed anti-inflammatory medication with medicines that control inflammation over time. Gentle movement and supervised strengthening can help preserve function; [Physiotherapy](/treatments/physiotherapy-and-rehabilitation/physiotherapy/) can be tailored around painful joints. Do not stop prescribed treatment suddenly without advice.

Seek prompt medical care for a rapidly swollen, hot and very painful joint, especially with fever or feeling unwell. Arrange urgent assessment for sudden inability to use a limb or severe pain after an injury. Persistent [joint pain](/symptoms/joint-pain/) with [joint swelling](/symptoms/joint-swelling/) or [morning joint stiffness](/symptoms/morning-joint-stiffness/) deserves evaluation rather than being attributed to psoriasis alone.

Could my symptoms fit [Psoriatic Arthritis](/conditions/psoriatic-arthritis/)? Which joints are inflamed? Do I need imaging or blood tests? What treatment protects joint function? How should I exercise during a flare?