Ankylosing Spondylitis Diagnosis
The symptoms of AS often resemble other forms of arthritis such as psoriatic arthritis, arthritis associated with inflammatory bowel diseases (such as Crohn’s disease or ulcerative colitis) or reactive arthritis. Seeing a doctor, preferably a rheumatologist, early for an accurate diagnosis is very important.
To diagnose AS, the doctor will rely on medical history, physical examination of joints and spine, imaging tests of the pelvis and also blood tests to check for the HLA-B27 gene. Having the HLA-B27 gene doesn’t mean someone has AS; but it is a clue that may support the diagnosis. Many people have the HLA-B27 gene and don’t have AS.