10/28/2026
Your bloodwork came back normal.
Your joints still hurt. Your fingers still swell.
And now you're being told it's probably nothing.
Is there a blood test for psoriatic arthritis?
No. There's no single blood test that confirms or rules out psoriatic arthritis.
The antibodies used to identify rheumatoid arthritis are usually negative in psoriatic arthritis. Inflammation markers like CRP and ESR are often normal too. So a "normal panel" isn't the reassurance it sounds like.
How is psoriatic arthritis diagnosed?
By a clinician, ideally a rheumatologist, who examines your skin, your nails, and your joints together, sometimes with the help of imaging like ultrasound.
Normal labs shouldn't close the door. What you need is the right exam.
Dr. Vishnuteja Devalla, our team's psoriatic arthritis and gut health expert, explains in part five of his series. Next, he'll show you how to ask for that exam.
Were you told your labs were normal while your symptoms kept going? Share your experience in the comments.