Objective To observe the impacts of yiqi huoxue tongmai tang on hemorheology in diabetic peripheral neuropathy( DPN). Methods Sixty- two patients were randomized into a treatment group( 32 cases) and a control group( 30 cases). The diet control,rational exercise,anti- glucose medication or insulin injection and oral medication of methycobal were given in the two groups. In the treatment group,yiqi huoxue tongmai tang was added. One session treatment was 30 days and the efficacy assessment was done after 2 s...