Background:Caput succedaneum is a common birth injury and may co-exist withsubgal.eaL hemorrhage which lead to shock and death. However,inappropriate btood transfusions in infants with caput succedaneumoccur since there are no clear bLood transfusion criteria.Objective :To identifu the rate of b[ood transfusions before and after implementingthe blood transfusion criteria in infants with caput succedaneum andcomplications such as shock or death due to de[ayed transfusion.Methods:A before and after quasi experimental study was performed. Data includingsex, gestational dge, deLivery method, Apgar score, birth weight, headcircumference, hematocrit, bLood transfusions and shock or death due todelayed transfusion were reviewed and coLLected from infants with caputsuccedaneum in neonatal intensive care unit and ICD-10 code in medicalrecords. Data before commencement of transfusion criteria were recordedduring October I, 201.1 to September 30, 2012 and data after commencementof transfusion criteria were recorded during October 1,2012 to September 30,2013.Resutts:lmplementation of transfusion criteria significantLy reduced b[ood transfusionin infants with caput succedaneum from 1.9.8o/o of 404 infants to 5.1.o/o of 391.infants (OR 0.2t8;95o/oCl 0.131-0.364; P=0.00). Shock or death due to delayedtransfusion were not found.Conctusion:BLood transfusion criteria significant[y decreases the rate of blood transfusionsin infants with caput succedaneum.