In 2000, the General Council, the Health Insurance Agency, healthcare professionals, and patient representatives launched an organized breast cancer screening program in the department of Seine-Saint-Denis. Then, in 2004, in Bondy, a partnership with local medical and social service providers was established as part of a health promotion project, and two public health visitors were recruited. While screening rates have indeed increased, a major challenge remains: 25% of women still do not participate in the program despite the efforts made.