Ankylosing spondylitis is a chronic

progressive inflammatory disease characterized by inflammation of the medial axis joint and tendon ligament attachment site. HU Yinqi divided the disease into six types of syndromes:dampness heat obstruction syndrome

cold dampness obstruction syndrome

liver-kidney yin deficiency syndrome

kidney du yang deficiency syndrome

blood stasis obstruction syndrome

and phlegm stasis obstruction syndrome.According to different lesions

drugs with targeted therapeutic significance were used based on syndrome differentiation. The clinical medication should be moderate in nature

and the emphasis is on supplementing and boosting liver and kidney essence and blood. It does not advocate blindly warming and replenishing the kidney yang

stressing the balance of yin and yang

with quiet good curative effect.