Menstruation hygiene management among secondary school students of Chitwan, Nepal:a cross-sectional study

BACKGROUND: Despite significant progress in reproductive health, many societies still treat menstruation as disgraceful and shameful process and relate it with negative consequences. This belief and attitude may increase the incidence of reproductive tract infection, leading to significant negative impact on women’s health. To manage menstruation hygienically and with dignity, it is essential that women and adolescent girls have sufficient knowledge on menstruation hygiene management. Thus, this study aims to identify the knowledge, associated factors related to menstrual hygiene management (MHM) and effectiveness of health education on MHM. METHODS: A school-based study was conducted between August 2021 to April 2022 among 400 secondary school girls. The sampling unit was selected by using systematic random sampling method. Health education was given in the interval between the pretest and posttest of knowledge assessment on MHM. Logistic regression analysis and Wilcoxon rank test were applied to identify predictors and to evaluate the effectiveness of health education. RESULTS: Overall, 57.7% of the girls had unsatisfactory level of knowledge. Around two third (61.4%) missed school days during the menstrual period. Almost 99.5% had experienced some form of cultural restrictions during the menstrual period. After imparting health education, the level of knowledge on menstruation hygiene had significantly improved (z = 17.129, p = < 0.001) to satisfactory compared to the baseline knowledge level (42.3% vs. 92.5%). During multivariate analysis, factors such as having studied in public schools (AoR = 1.7, p = 0.026), having no or one close female friend (AoR = 2.2, p = 0.011), caste other than Brahmin/Chhetri (AoR = 1.4, p = 0.05) and factors such as living in joint family (AoR = 1.6, p = 0.048) were significantly associated with unsatisfactory level of knowledge on MHM. CONCLUSIONS: A substantial number of respondents had unsatisfactory level of knowledge on MHM. Factors such as ethnicity status, types of family, number of close female friends, types of schools and mothers’ education were associated with unsatisfactory level of knowledge. School absenteeism and cultural restriction were found to be common/frequent. Imparting of health education was found to be an effective measure to enhance knowledge on MHM. SUPPLEMENTARY INFORMATION: The online version contains supplementary material available at 10.1186/s12905-023-02494-x.