The Chibanis represent the population of aging former immigrant workers who arrived in France in the 1970s in order to take up employment. Most of them still live in immigrant hostels, which are not appropriate for an older population. This anthropological study was conducted on Chibanis living in an immigrant hostel in the 15th arrondissement of Marseille. The objectives were to assess the medical, economic, and social characteristics of this population, to understand their access to health care, and to measure their adherence to the prevention actions of an association. 67 Chibanis aged 65 and over were included, with a median age of 77: 91% had access to a general practitioner, and 86.6% had more than two chronic diseases. More than half of the Chibanis complained of dental problems, and 20% complained of ophthalmological problems. Only 32.8% of the Chibanis included agreed to follow-up care with the nurses from the association. The population of Chibanis are isolated geographically from their families, live in poor socio-economic conditions, and often have insufficient medico-social coverage. They must "manage" their chronic diseases, as well as costly health problems such as dental or ophthalmic diseases. Improving care pathways for this population requires us to identify their specificities and all the factors hindering prevention actions.