Diabetic microangiopathy falls within the scope of thirst in traditional Chinesemedicine(TCM) and has the typical features of microangiopathy in modern medicine and the typical manifestations of yin-deficiency and blood-stasis syndrome in TCM.Yin deficiency is the root cause of consumptive thirst,while blood stasis is the manifestation of consumptive thirst.Thus,yin deficiency and blood stasis constitute the key pathogenesis of diabetic microangiopathy.The fundamental TCM treatment method of diabetic microangiopathy is nourishing yin and promoting fluid production as well as promoting blood circulation.