The symptoms of ankylosing spondylitis are probably not well known and most people are not very familiar with the disease. The consequences of ankylosing spondylitis are more serious, what are the symptoms of ankylosing spondylitis? The first thing you need to do is to get a good idea of what you are getting into. Patients are usually diagnosed many years after the onset of the disease. Many patients have low back pain or sacroiliac pain, which occurs slowly in the morning after waking up. It also affects sleep at night. 2, mainly involving the sacroiliac joints and spine Ankylosing spondylitis is a chronic inflammatory disease that mainly involves the sacroiliac joints and spine. Peripheral joint involvement 24% to 75% of patients with ankylosing spondylitis may develop peripheral joint lesions in the hip, knee, ankle and shoulder joints at the beginning or during the course of the disease, with occasional involvement of small joints of the elbow, hand and foot. The peripheral joint lesions are mostly asymmetric, often involving only a few joints or a single joint. Among them, arthritis of the large joints of the lower extremities is the main feature. 4, peripheral joints in the hip joint is vulnerable to involvement of the hip joint involvement accounted for 38% to 66% of the peripheral joint lesions of ankylosing spondylitis, manifested as hip pain, limited mobility, flexion contracture and joint ankylosis, and hip symptoms are common in the first 5 years after the onset of ankylosing spondylitis. 5. Eye and other organ lesions 1/4 of patients with ankylosing spondylitis may develop uveitis during the course of the disease, alternating unilaterally or bilaterally, with recurrent episodes, which may even lead to visual impairment. The cardiovascular system and respiratory system can also be involved. The cause of ankylosing spondylitis has not yet been determined, so there is no ideal treatment for it, so the chance of disability is still very high. Many patients with ankylosing spondylitis have hip joint involvement, resulting in impaired hip function and lifelong disability. The chance of hip damage is 30%, and the disability rate for ankylosing spondylitis is about 20%.