In recent years

it has been noticed that traditional Chinese medicine（ TCM） dredging collateral therapy is not only effective to complications of type 2 diabetes in advanced stage

but also shows good efficacy in the early stages of the disease. By analyzing the correlation between the "new disease invading the collaterals"and the early pathogenesis of type 2 diabetes

and combining the recognition of the existence of pancreatic microangiopathy in early hyperglycemia in modern medical research

it is proposed that the"new disease invading the collaterals"is one of the early pathogenesis of type 2 diabetes. It is believed that in the early treatment of type 2 diabetes

"dredging collateral"is the general rule

and the methods of tonifying and dredging collateral

clearing heat and dredging collateral

promoting blood circulation

opening depression and dredging collateral

and removing dampness and dredging collateral should be flexibly selected according to the syndrome.