Understanding the territorial reality of inequalities in access to care requires an "empirical approach" based on the "real spatial practice" of users. The concept of "lived territory" is defended as a relevant geographical unit which helps to process the data of 286 million "home-general practitioner" flows from SNIIRAM database and suggests a better congruence between health care supply and effective demand for care. The identification of fragile territories gives a real insight to institutional decision-makers to best respond to the match between supply and effective demand through public policies. Moreover, this territorialised information, identified through the lived territory concept regarding the geographical areas threatened by the general practitioners' under-density, is also useful for the various stakeholders, such as elected officials, citizens, etc. This is how the information from the "territory of knowledge" to the "territory of power" participates in the democratisation of primary care access.