Conservative treatment: the effect of drug treatment is not good, and even delayed treatment. Surgical treatment: Surgical vascular bypass and transplantation are traumatic, difficult and costly, and many patients have to amputate their limbs. Interventional therapy: interventional technology through the catheter, catheter, balloon, stent and other rapid restoration of vascular patency, to achieve immediate therapeutic effect, the cure rate of 98%. Chinese medicine treatment: postoperative Chinese medicine dialectic treatment, internal and external treatment, improve the efficacy, reduce the cost of medicine, and long-term efficacy.