Realities and challenges for the organization of the primary care system.

Summary Digital health care is booming, driven by a multitude of players and supported by public policies. It is leading to new uses for both patients and professionals. Its development is coming up against a particularly complex organization of the healthcare system, especially in primary care medicine1. It poses four challenges. First, it is an organizational challenge, requiring that its dissemination be considered in relation to the organizational realities in which it is embedded. Second, it is a socio-territorial challenge, given the weight of health inequalities. The third challenge is medico-economic, questioning its overall economic model and its sustainability. Finally, the fourth challenge is based on the new technical and legal issues it raises.