RESUMEN
Dysmenonhea is painful menstruation and premenstrual syndrome defined as a combination of distressing psychosomatic changes which appear as a cyclic recurrence during the luteal phase of the menstrual cycle. In the majority of cases these can interfere with familial or social activities. The aim of this study is assessment of the problem in high school girls in Babol. This is a descriptive analytical study and a cross sectional survey, which has been done on 410 high school girls in Babol, selected with two stage cluster sampling. Information was collected with a questionnaire. Data was statistically analyzed by spss[10] [T-Test, Fisher's exact] and P<0.05 was significant. Mean age of 410 students was 16.03+./-1.15 [years]. Mean age of menarche was 12.84 +/- 1 [years]. 52% of girls had dysmenorrhea and 45.6% of them had irregular menses. In girls with dysmenorrhea, menarche began earlier [P=0.023], intermenstural intervals were shorter than in other girls [P=0.145], and menstrual day in each cycle was more [P=0.55]. The most common symptoms at the beginning of the menses were: generalized malasia [52.21%] and fatigue [30.39%]. 91.18% of persons had experienced at least one of the symptoms of premenstrual syndromes. The most common symptoms were: abdominal cramps [56.37%], fatigue [40.93%], loosening of efficacy [40.93%]. Scottom in visual field had the lowest prevalence [5.15%]. Often, there was statistically significant relation between dysmenorrhea and premenstural symptoms. Dysmenorrhea and premenstrual syndrome are one of the commonest gynecologic problems in high school girls, and these problems can interfere with familial, social or work - related activities. Therefore educative and informative programs can be provided a beneficial useful step in health of girl students