Abstract: Objective To investigate and define the main departments of blood irrational use,blood product types and reasons of unreasonable use,provide theoretical basis for promoting standardized and rational use of blood products.Methods Make the specifications of blood transfusion according to the "clinical blood transfusion technical specifications" and other rational transfusion standards,analyze reasons of irrational use of blood products,observe all blood transfusion record of a hospital from February 2015 to March 2016,determine the rationality of each transfusion,classify the reasons for the irrational transfusion,and analyze the collected data. Results The reasonable using ratios of erythrocytes and platelets （94.36% and 94.48%,respectively）were higher than that of plasma and cold precipitates （54.52% and 64.66%,respectively）. The use of erythrocytes in internal medicine （hematology 95.71%,other internal medicine 95.80%）was more reasonable than the surgical one （90.38%）,and the surgical use of plasma （55.04%）and cold precipitation （71.53%）was more reasonable than hematology （plasma：33.33%,cold precipitate：39.13%）and other internal medicine （plasma 50.86%,cold precipitation 53.66%）. The overall rate of blood rational use in medicine （93.56% in hematology and 85.42% in other internal medicine）was higher than that in surgery （77.24%）. The main unreasonable reason of red blood cells and platelet transfusion was a transfusion management with no indication and loose specification; the unreasonable reasons of plasma and cold precipitate were transfusion with no indication,match sample and low dose transfusion.Conclusion The rational use of erythrocytes and platelets is relatively good while the rational use of plasma and cold precipitates is generally poor and requires improvement. Overall,the medical use of blood is better than surgery.

Key words: Wuhan region, Blood transfusion, Blood component