The work aims to revalidate environments participatory mapping, know the origin this practice, and the epistemological basis. Since this type of research can create links for reflection and action, between social perception and stakeholders focused on promoting social development and investigative actions. It articulate collective knowledge by the researcher becomes a challenge, involving a group of people in research and methodological schemes without losing objectivity cohesive give opinions, criticisms. From this idea analysis methodologies of the IAP, Geography of perception and participatory mapping was performed, and how they can help uncover the major public health problems currently facing the metropolitan area of Toluca because diagnoses by the Institute of health of the State of Mexico that identifies two focuses: environmental pollution, and chronic degenerative diseases (ISEM, 2015).