The population's health reflects the complex interaction among social, biological and environmental factors, which play a significative role at the starting of a disease. The use of the medical geography or health geography has constituted a useful tool when it comes the time to complement the epidemiologic thinking and the relations of causality between the phenomena, which have an important social impact on the researches that are carried out. It is on this basis that the present research has as an objetive : To Characterize the social impact on the researches carried out by the geographer on public health in Cuba. A study was made on the historical aspects of the medical geography or health geography in Cuba, the introduction of new methodologies and working tools which have permitted to generate new knowledge and introduce favorable changes in the working style of the public health professionals. The research analyzes the social scope which the geographic researches have , because they are intended to solve problems which affect the human health directly, getting to improve the health programs by making them more efficient and generating a new knowledge of the present situation of health and the prospective one which is the basis for the making of decisions to a central , provincial and municipal scale.