This article intends to compile current knowledge about the impact of gender norms in mathematics. The questions that will be asked are whether or not gender norms in mathematics have an impact on pupils, and if so, how are the consequences depicted in previous studies? The overview is based on the theoretical background of Judith Butler’s (2007) theory about gender, although it will focus on the two-gender system since this still is the norm in Sweden. Earlier studies suggest that gender norms in mathematics have a lifelong impact on people, especially women. The findings of this overview is relevant to educate school personnel and guardians about the positive as well as negative consequences of a gendernormative view on mathematics.