Ankylosing spondylitis is a chronic disease, the cost of treatment is relatively high, the specific cost is related to the treatment plan, hospital level, so it can not be generalized. Depending on the oral medication, the price varies, such as biologic treatment costs about $1000-2000 a month, and if some non-steroidal anti-inflammatory drugs, such as aspirin, are used, it costs about $300-500 a month. Most patients with ankylosing spondylitis can have their disease completely controlled with effective treatment, so it is important to diagnose early and provide reasonable and effective treatment early to improve the prognosis.