This paper looks at how shame functions in the teaching of sexual and reproductive health and rights in the classrooms for 13-19 year-olds in secondary schools in Bangladesh. Using the theoretical framework of affect, the paper looks at shame and other experiences of discomfort and hesitation among teachers while teaching these topics to young people. Drawing insights from 25 in-depth interviews with teachers in secondary schools in urban, semi-urban and rural settings, the paper explores how teachers deemed teaching certain topics as 'excessive', unnecessary and inappropriate in school settings. Teachers experience reluctance and discomfort in discussing culturally sensitive sexual and reproductive health and rights topics, and a persistent fear of being ridiculed and excluded from their community. By exploring how affect can be understood to initiate critical reflection about classroom norms, pedagogy and the role of teachers, the paper highlights the challenges for teachers who are seen as gatekeepers of sexual and reproductive health and rights knowledge, and brings forth a more nuanced reflection on the knowledge production process in classrooms.