In 2009, the International Spondyloarthritis Assessment Task Force (ASAS) proposed a multidimensional approach to diagnosis, dividing patients into multiple entry pathways: with imaging abnormalities, add 1 or more SpA features; with 3 or more SpA features; with IBP, add 2 or more SpA features; or with HLA-B27 positivity, add 2 or more SpA features. Among the imaging abnormalities, in addition to the original bilateral sacroiliac joint grade II or unilateral grade III or higher X-ray abnormalities, MRI sacroiliac joint inflammatory changes were added, which increased the diagnostic sensitivity from 66% to 83%. The above criteria gave importance to patients with acute anterior uveitis and/or HLA-B27(+). Although acute anterior uveitis has many etiologies, half of them are associated with rheumatic diseases; a significant number of patients with acute anterior uveitis associated with HAL-B27 are in turn associated with SpA; therefore, in clinical practice, if the above multiple diagnostic pathways and conditions can be considered together and used separately or in combination for different patients according to their specific conditions, it would be possible to significantly improve the The diagnosis rate.