Plaque psoriasis and psoriatic arthritis: what to know

Plaque psoriasis causes raised, scaly skin patches, while psoriatic arthritis affects joints, tendons, or areas where tendons attach to bone. Not everyone with plaque psoriasis develops joint disease, and joint symptoms can appear before, during, or after skin symptoms. Psoriatic arthritis may involve fingers, toes, knees, feet, or the spine. A common presentation of psoriatic arthritis is joint pain with swelling or morning stiffness; these symptoms do not by themselves prove that a person has the condition. A clinician considers the pattern, skin and nail changes, examination findings, and sometimes tests to distinguish it from other causes.

Keep a record of swollen joints, morning stiffness, nail changes, and psoriasis flares, including which areas limit daily tasks. Early assessment can help protect movement and guide treatment. Care may include anti-inflammatory medication for pain and inflammation, together with a longer-term plan when inflammatory arthritis is confirmed. Physiotherapy can support joint mobility, muscle strength, pacing, and adaptations for work or exercise. Skin and joint care should be coordinated because activity in one area may not mirror the other. Avoid stopping prescribed medicine abruptly; discuss side effects, pregnancy plans, and other medicines with the treating clinician.

Arrange a prompt review for a newly swollen joint, persistent morning stiffness, pain that is limiting function, or a swollen finger or toe. Seek urgent care for a hot, very painful joint with fever or feeling acutely unwell, or for sudden loss of movement after an injury. Eye pain, light sensitivity, or blurred vision alongside inflammatory symptoms also needs urgent medical attention. Do not wait for a skin flare before reporting new joint symptoms.

Could my joint symptoms represent Psoriatic Arthritis? Which findings would support another diagnosis? What treatment plan addresses both skin and joint activity? Would physiotherapy be appropriate, and which exercises should I avoid during a flare?