Surprisingly, few studies have been reported regarding the effects of premenstrual syndrome (PMS) in the workplace. Given the increasing number of working women, it is important to ask whether PMS has any significant effect on work behavior. The purpose of this review is to consider selected PMS research in order to integrate the more relevant work-related findings and suggest how employers might best use this knowledge.Keywords: premenstrual syndrome, workplace, work behavior, working women.The popular press and scientific journals have increasingly featured articles on premenstrual syndrome (PMS). With an increasing number of women working, it is appropriate to ask whether PMS has any significant effect on work behavior. If it does, then the issue becomes how to minimize any resulting negative consequences. In addition to diagnostic and other methodological problems, however, a stigma surrounds so personal a topic. Moreover, a question exists concerning the extent to which an employer should be involved with such a personal matter. This question is compounded by the insistence of some researchers that PMS has its roots in psychological, not physiological, factors. The purpose in this review was to consider selected PMS research in order to integrate the more relevant work-related findings and suggest how employers might best use this knowledge.Whether talking to men or women, laypersons or professionals, it is easy to find widespread popular support for the notion that women routinely experience both physical and emotional changes corresponding to their monthly menstrual cycles. Of particular concern are those changes occurring in the "premenstrual" phase, i.e., the days just prior to the onset of menstruation. In reviewing the relevant literature, there are numerous articles in both the popular press and scientific (medical and psychological) journals dealing with these changes.