Abstract\nPlain language summarySince menstrual health and menstrual inequity are determined by social power structures, this study proposes to analyse, from an intersectional perspective, the experiences of menstrual inequity of women and people who menstruate (PWM) (≥18 years) under circumstances of socioeconomic vulnerability in an urban and rural setting in Catalonia (Spain), focusing on menstrual poverty, menstrual management and access to health care for menstrual health. An exploratory and interpretative qualitative study was conducted. Venue-based convenience sampling was carried out, recruiting women from a non-governmental organisation and a primary health care centre. Eighteen individual semi-structured interviews were conducted between October 2022 and February 2023. Data were analysed through reflexive thematic analysis. Analysis revealed that menstrual care was generally a distant preoccupation that revolved around circumstances of socioeconomic vulnerability, housing, and productive/reproductive work. Menstrual poverty, menstrual management and menstrual self-care challenges, barriers to accessing health care for menstrual health, and menstrual taboo, stigma and discrimination were commonplace and deepened by socioeconomic vulnerability. In this way, women’s menstrual experiences were rooted in intersecting axes of inequity, based on gender, race and class. Intersectional and critical participatory research, policy and practice are imperative to develop counter mechanisms that confront systems of privilege-oppression to modulate menstrual experience, health and equity.This study investigates menstrual inequity among women living in difficult socioeconomic conditions in urban and rural areas of Catalonia, Spain. The study uses an intersectional approach to understand how forms of discrimination—such as sexism, racism, and classism—affect women’s menstrual experiences. Between October 2022 and February 2023, we recruited and interviewed 18 women via an NGO and a primary health care centre. We focused on three areas: (1) What access women had to products like pads or tampons, (2) How women used menstrual products and dealt with symptoms like pain, and (3) How women accessed health care for problems related to menstruation. We found menstrual care is often not a top priority for women who face economic difficulties, are in unstable housing, have demanding work and/or are carers. These women often struggle to access menstrual products, manage their periods effectively, get necessary health care, or overcome menstrual stigma. These challenges are made worse by the combined effects of gender, race, and class, showing how different forms of discrimination can reinforce one another. We conclude that more inclusive research is needed. Changes in policy and practice to address these compounded inequities and improve menstrual health and equity are essential. [ABSTRACT FROM AUTHOR]