Psoriatic arthritis symptoms
Psoriatic arthritis (PsA) is an inflammatory arthritis associated with psoriasis. Around 150,000 people in the UK live with PsA, and roughly 1 in 5 people with psoriasis develop it.
Common symptoms of psoriatic arthritis
- Joint pain and stiffness, often asymmetrical
- Dactylitis — sausage-like swelling of a whole finger or toe
- Nail changes: pitting, ridging, or separation from the nail bed
- Lower back and buttock pain (axial involvement)
- Enthesitis — pain where tendons attach to bone, especially at the heel
- Fatigue and reduced exercise tolerance
When to see your GP
If you have psoriasis and develop joint pain, swelling, dactylitis, or persistent back stiffness, ask your GP about referral to rheumatology for screening.
This is general information, not a substitute for personalised medical advice.
Frequently asked questions
What are the first signs of psoriatic arthritis?
The earliest signs of psoriatic arthritis often include joint pain, stiffness — particularly in the morning or after rest — and reduced flexibility in the affected area. Symptoms typically develop gradually, so keep a short symptom diary and speak to your GP if pain persists for more than a few weeks.
How is psoriatic arthritis diagnosed in the UK?
In the UK, GPs diagnose psoriatic arthritis from your symptoms, a clinical examination, and — where appropriate — blood tests, X-rays, ultrasound or MRI. For inflammatory types, your GP may refer you to UK healthcare rheumatology for specialist review under NICE guidance.
Can psa symptoms come and go?
Yes. Many people with psa experience flares — periods of worse pain, swelling and stiffness — followed by quieter spells. Tracking your flares helps you and your GP spot triggers and adjust treatment.
When should I see a GP about psoriatic arthritis symptoms?
Book a GP appointment if joint pain has lasted more than a few weeks, is interfering with sleep or daily life, or is accompanied by swelling, warmth, locking or unexplained fatigue. Early assessment leads to better long-term outcomes.
Is psoriatic arthritis the same as general arthritis pain?
No — there are over 100 forms of arthritis, and psoriatic arthritis has its own pattern of symptoms, affected joints and treatment pathway. Getting the right diagnosis matters because the most effective treatments differ between conditions.