Axial spondyloarthritis (also often referred to as axSpA) is a chronic, immune-mediated disease predominantly affecting the axial skeleton (sacroiliac joints and spine).[1] The term itself is an umbrella term characterizing a diverse disease family united by shared clinical and genetic features, such as the involvement of the axial skeleton.[2] The 2009 introduced term axial spondyloarthritis is a preferred term nowadays and substitutes the old term ankylosing spondylitis.[3]