We examine the relationship between the use of period productsand reproductive tract infections utilizing the National FamilyHealth Survey-5 (2019–21) for India. To address endogeneity con-cerns in an OLS approach, we employ an instrumental variablestrategy that exploits exogenous variation in women’s averageexposure to television in neighbouring households. Conditionalon a comprehensive set of controls, we find that the use of periodproducts reduces the likelihood of contracting any RTI by 16 per-centage points. Our findings are robust to alternative specifications,sample restrictions, and the inclusion of additional covariates. Wefurther assess the sensitivity of our estimates by allowing the instru-ment to be plausibly exogenous, thereby relaxing the strict exclu-sion restriction. Heterogeneity analysis reveals that while the effectsare broadly consistent across caste, class, and wealth groups, ruralwomen and those aged 20–24 remain key populations requiringtargeted informational and policy interventions.