Firstly, ankylosing spondylitis is a chronic autoimmune disease that primarily damages the axial joints, and currently, there is no specific cure for it. This means that the disease cannot be completely cured but can only be managed with medications to alleviate symptoms, delay complications, improve quality of life, and reduce disability rates. If this disease is not treated properly, it can lead to joint deformities, muscle rigidity, and spinal stiffness. Once the spine becomes stiff, functional impairments occur, at which point the quality of life decreases, and surgery may need to be considered. If there is a subluxation of the joint, joint fusion surgery must be considered. Changes can also occur in the peripheral joints, in which case joint replacement might be considered.