[Methodology for the development and update of practice guidelines: current state].

The current scenario of health services in Mexico reveals as a priority the implementation of strategies that allow us to better respond to the needs and expectations of individuals and society as a whole, through the provision of efficient and effective alternatives for the prevention, diagnosis and treatment of diseases. In this context, clinical practice guidelines constitute an element of management in the health care system, whose objective is to establish a national bechmark for encouraging clinical and management decision making, based on recommendations from the best available evidence, in order to contribute to the quality and effectiveness of health care. The purpose of this document is to show the methodology used for the development and updating of clinical practice guidelines that the Instituto Mexicano del Seguro Social has developed in line with the sectorial model in order to serve the user of these guidelines.