The manifestations of ankylosing spondylitis are mainly the following: 1, alternating hip and leg pain, alternating pain in the left hip and the right hip, that is, pain on the left side, and then pain on the right side after getting well, pain on the right side, and then pain on the left side after getting well, which is the earliest manifestation of ankylosing spondylitis; 2, morning stiffness, stiffness in the back when you get up in the morning, inflexible activities, difficulty turning over, feeling as if the back is very stiff and inflexible activities flexibility, which is also an early manifestation. Further development, in the middle and late stages, the lumbar spine mobility is limited, that is, the lumbar forward flexion and backward extension, left and right lateral flexion, left and right rotation, bending over to pick up things or bending over to put on shoes and socks is very difficult, the final performance is ankylosis, that is, the entire spine like a straight stick, not able to bend over, not able to move, turning over and sitting up are very difficult; 3, peripheral arthritis, the main performance of two aspects, tendonitis, that is, heel pain, joint Synovial inflammation such as knee joint effusion, swelling, etc.