Historically, studies and research on migratory movements are guided by patriarchal values, with migration being treated almost always as a male issue, making the female presence invisible in this process. This omission of migrant women in migration studies insistently reinforces the trajectory of male mobility as the norm. Thus, due to this historical omission of female migration, the proposal is to study, from the intersection between gender, migratory process and border, female migration to the care sector, which consists of the work carried out in the domestic sphere of care with cleaning the domestic environment and especially the care of people (children, the elderly, people with disabilities, etc.), and which has been hidden in traditional analyzes of migration studies. Within this problem, the present work proposes to make a critical analysis of the implications of gender invisibility for the international (un)protection of the human rights of Paraguayan workers, who migrate and/or transit irregularly to work in the area of care at the border of Foz do Iguaçu. This place of vulnerability reinforces invisibility from the state perspective of protection, which considers the subjects included in the norm and deserving of state protection and human rights: nationals, citizens, regular/documented migrants, etc. To answer this question, where are these migrant women on the border, we used the feminist methodology that allows analyzing, from the questioning of this silencing of migrant women, the asymmetries constituted by gender relations in the process of mobility of Paraguayan workers on the border, in view of the intrinsic particularities in the female migratory project and in the work of the care sector. This research was developed using a qualitative approach and methodological techniques, such as the inductive analysis of norms and social policy, based on secondary sources: from the survey of existing statistical data in institutional newsletters, originating from the Migration Observatory (Obmigra), Instituto Brasileiro de Geografia e Estatística (IBGE) and the Institute of Applied Research (IPEA) in order to survey the profile of migrant women at the border.