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Public health awareness in the 19th century and the environmental values of the second half of the 20th century should have led urban planning to promote, in addition to health facilities, a policy of public health. It has to be noted that health facilities were more or less banished to outside of city walls (be these walls physical or conceptual only), as a sort of reflexive, protective rejection of sick bodies. When studying the history of cities, it is significant to understand the mechanisms of territorial division to include or exclude certain functions, thus impacting city dwellers. Urban planning that accounts for public health needs to focus on reducing exclusion in all its forms, with an aim of eradicating illbeing.