OBJECTIVE To analysis the status of the utilization of the prophylactic antibiotics and the main reason for the irrational use in patients undergoing aseptic operation of three hospital in our city,so as to provides the referential evidence for the utilization of the prophylactic antibiotics in clinic.METHODS Retrospective analysis was carried out to 1374patients in the three hospitals from Jun.to Dec.2012and the status of the utilization of the prophylactic antibiotics in patients undergoing aseptic operat...