Does psoriatic arthritis cause joint swelling?

Psoriatic arthritis is an inflammatory condition that can affect the lining of a joint, producing visible puffiness, warmth, tenderness, and reduced movement. It may involve fingers or toes, knees, ankles, wrists, or other joints. Swelling can occur on one side or several areas, and an entire finger or toe may look enlarged. Skin or nail psoriasis, heel pain, or stiffness can provide useful context, but joint swelling alone cannot establish the diagnosis.

Arrange an assessment if swelling persists, returns, or limits daily activities. A clinician may examine the pattern of affected joints and ask about psoriasis, family history, eye symptoms, and bowel symptoms. They may use blood tests or imaging to distinguish inflammatory arthritis from injury, crystal arthritis, or infection. Keep a brief record of which joints swell, how long episodes last, and whether stiffness is worse after rest. Do not start or stop anti-inflammatory or immune medicines without medical advice.

Seek urgent medical care for a suddenly very painful, hot, or rapidly enlarging joint, especially with fever or feeling unwell, because infection needs prompt assessment. Get urgent help for a painful red eye or new vision changes. Otherwise, book a routine appointment when swelling is ongoing or accompanied by morning stiffness, nail changes, or recurring tendon pain.

Could this pattern fit inflammatory arthritis, and what alternatives should be considered? Which examination or tests would clarify the cause? What can I do safely while waiting for assessment?