GPs in UK: From Health Gatekeepers in Primary Care to Health Agents in Primary Health Care.

After 75 years of reformed practice, general practitioners (GPs) in the UK have transformed from health gatekeepers who simply provide medical decision-making such as diagnostic and treatment services and referral services, to health agents who proactively provide more relevant health services such as immunizations, health monitoring and health management, etc. In order to discuss this transformation of the role of the general practitioner and the conditions for the evolution of the role, this study chose the documentary analysis method to provide a comprehensive overview of the legal and normative documents related to the general practitioner. Furthermore, this study uses a comparative analysis method to conclude the definition and role characteristics of GPs as health agents. This study summarises the general pattern of evolution of GPs into health agents. The transformation into a health agent relies on the interpersonal trust and rigorous institutional of society on the general practitioner system. The expansion of GPs' clientele and range of services, together with the motivation to proactively provide services, have combined to push for a "qualitative change" in the GP's role as health agent. The transformation of the role of the general practitioner to a health agent is a historical necessity. It responds to the evolution of society's understanding of health and the need for higher levels of health. Therefore, recognizing the role of GPs as health agents is important for optimizing the use of health care resources and improving the health of society by taking advantage of this role.