This article explores the ‘performativity of disgust’ as a feminist strategy that takes place in various instances of menstrual activism. The analysis is based on an ethnographic study in Spain, which focused on alternative politics and cultures of menstruation that question the negative hegemonic Western vision of menstruation. By analysing the debates around gender, feminism, and corporality that arise in this field, the article highlights alternative corporal and menstrual imaginaries. The article contributes to and extends critical menstruation studies by exploring how feminist activists who engage in menstrual politics produce an aesthetic of disgust by reappropriating the abject, and in so doing, question the politics of menstrual disgust and gender inequalities. Paying special attention to collective initiatives that take place in public space, viewed as a place of social transformation, the article sheds light on how challenging the notion that ‘menstruation is disgusting’ can help us question gender and social inequalities, and promote social transformation.