<![CDATA[Background: Premenstrual syndrome (PMS) refers to a set of physical, psychological and emotional sympstoms during a part of a woman’s menstrual cycle. About 80-95% productive woman has experience with premenstrual syndrome could effect several aspects in their life. Several factor could cause premenstrual syndrome is increase level of estrogen hormone. Basic material of esterogen is fat, especially peripheral fat. that could be predicted by measuring the body mass index. The aim of the study is to examine the relationship between body mass index (BMI) and Premenstrual syndrome at female medical faculty, 2012-2013 of Haluoleo University. This study was an analytic observasional with cross sectional design. Samples in this study were 133 respondents from the female of Medical Faculty, of Halu Oleo University. Samples were obtained by proportional stratified random sampling. This study using American Psikiatry Assosoation (APA) questionnaire to diagnose premenstrual syndrome. Data were analyzed with chi-square. In this study, 55.6% of respondents having a Premenstrual Syndrome, in which 96.15% incidence of premenstrual syndrome occurred in overweight group. There is a significant relationship between body mass index with the incidence of premenstrual syndrome with p value = 0,000 (p <α = 0.05) in which increasing a person's weight, the tendency to experience incidence of premenstrual syndrome will also increase. There is a relationship between body mass index with the incidence of premenstrual syndrome on the female of Medical Faculty, 2012-2013 of Halu Oleo University.Keywords : Body Mass Index, Female Medical Students, Premenstrual syndrome]]>
