OBJECTIVETo detect the expression level of cyclooxygenase-1（COX-1） and cyclooxygenase-2（COX-2） in the platelet of iron deficiency anemia（IDA）women at childbearing age and to explore its correlation with the different indexes of anemia and platelets.

METHODSForty female IDA patients at childbearing age and 35 healthy controls were enrolled in this study. The Flow cytometry was used to detect the expression of platelet COX-1 and COX-2，the platelet aggregation function as examined by turbidimetric method，and the levels of serum ferritin were analyzed by electrochemical luminescence method，the leval of serum iron was determined by ELISA，and the correlation of different indexes was analyzed.

RESULTSCompared with healthy controls，the levels of platelet COX-1 and COX-2 were significantly lower in female IDA patients at Childbearing age（P<0.05），but platelet count（Plt），mean platelet volume（MPV） and platelet aggregation rate（PAgT）were not statistically different between the 2 groups（P > 0.05）. The expression level of platelet COX-1 positively correlated with those of Hb（r =0.623，P<0.01），serum iron（r =0.321，P<0.05） and HCT（r=0.305，P<0.05）. but the platelet COX-2 expression did not corelate with these indexs.

CONCLUSIONThe expression of platelet COX-1 and COX-2 in female IDA patients at Childbearing age markedly decrease，and the expression level of platelet COX-1 closely relates with the severity of anemia，that possesses reference value for clinical diagnosis of female IDA patients at Childbearing age..