evidence: Mayotte is a French overseas department and region located in the Indian Ocean, between Mozambique and Madagascar. It is composed of two main islands, Grande-Terre and Petite-Terre, and several smaller ones. It has a population of about 310,000 people, most of whom are Muslims and speak Shimaore and Shibushi, two local languages, although French is the official language. As a French territory in Africa, Mayotte is struggling and facing a growing health crisis. It is currently the poorest and most densely populated department of France, with high unemployment rates and low level of education. It further struggles with social and political instability, as well as environmental degradation. Despite its many challenges, it has attracted a lot of migrants from neighboring countries, who seek better living conditions and security. [...] It is in this context that Doctors of the World (DotW) intervenes in slums, with people excluded from healthcare and constantly threatened with deportation. "There are as many deportations to the border in Mayotte as in all the rest of French territory ", explains Rozenn Calvar again. As a result, patients do not come to consultations because they fear being arrested and deported from Mayotte.