Inner Canon of Yellow Emporor（《黄帝内经》） puts forward that the pathogenesis of Bi-syndrome（rheumatoid arthritis

RA） is"Qi of wind

cold and dampness miscellaneously attacks and combines to form Bi-syndrome". Combined with the understanding of Inner Canon of Yellow Emporor

by analyzing Chinese medicine pathogenesis syndrome element of RA

the authors think that miscellaneous attacking of wind

cold and dampness Qi forms"Bi-syndrome pathological factors"

which is the inducing condition of RA. "Bi-syndrome pathological factors"sneaks in and combines after entering the body

which is the onset determinant of RA. According to the contest model of "Bi-syndrome pathological factors yingfen and weifen"

based on clinical manifestations of RA patients

to determine the amassing location and level of "Bi-syndrome pathological factors"

the authors divide the disease into four stages: starting stage

onset stage

attack stage and fastigium stage

and establish the corresponding treatment and medication.