This study found that a breastfeeding-friendly breast pumping break policy in the workplace significantly increased continued breastfeeding behavior after returning to work. In particular, encouragement to use breast pumping breaks from working mothers' colleagues and supervisors can significantly affect their intention to continue breastfeeding after returning to work. Moreover, lactation rooms with a dedicated space increased the willingness to continue to breastfeed. Hence, managers' attitude and support influence female employees' perception of workplace breastfeeding support. Previous studies indicated8,19 that managers influence the work climate of breastfeeding support by either adhering to or ignoring company policies, informally supporting or discouraging breastfeeding employees, or managing or disregarding issues arising among their coworkers. In a breastfeeding-friendly workplace, the provision of lactation rooms is a critical element and should include a private and comfortable room at the worksite. Regarding lactation rooms with dedicated spaces in our data, however, 51.3% of the subjects used them, but there was only a 30% satisfaction regarding the lactation room (data not shown). The breastfeeding rooms in the plants do not seem to be ideal in terms of cleanliness and comfort. Regarding breastfeeding rooms without dedicated spaces, most participants believe that there should be breastfeeding rooms with dedicated space for employee use; 28% of the participants expressed this need (data not shown). Past studies20,21 surveying employers' attitudes about breastfeeding-friendly support indicated that employers would be willing to help women who wished to breastfeed or express milk in the workplace.