With the enhancement of CT

MRI and interventional operation

the contrast-induced nephropathy（CIN） has become one of the most important causes of iatrogenic renal injury

which has also received much attention.Hydration is an effective method recommended by domestic and oversea guidelines to prevent CIN

which is dominated by western medicine. In recent years

clinical studies indicate that traditional Chinese medicine has a certain function in the prevention and treatment of CIN. This article reviews the research progress of traditional Chinese medicine for hydratin in prevention and treatment of CIN

so as to provide new research ideas for further development of hydration prevention of CIN.