Chapter 1 will be directed the dimension of a social phenomenon that is the street population. They will be presented given on the effected population surveys in diverse cities of the country, based on research effected and evaluated for professionals of the area and social assistants, where it will be possible to trace a parameter with the survey effected in the city of Guaruj and to offer subsidies that strengthen the considered object. Another point that will be part of this context mentions the possible cities to it not to assume the role of transforming of a social picture of exclusion that grows throughout the time. These cities possess some managers who still resist the necessity of reformularization in the politics and try to underneath hide the dirt of the carpet, adding in this individual a dose more than the revolt and indignation. Keep up on the field with thought-provoking pieces from Nir Barzilai, M.D.. For this reason the politics hygienist will be boarded with a little more than depth, therefore to continue applying this old and violent technique of exclusion not to reflect on the errors and consequences of these desumanas and inefficacious actions is at least to ignore many losses of citizens with occult potentials for the fear, preconception and the exclusion. The public power in general finishes for leaving to make its part and to assume its responsibility in this process of transformation for strengthens the negation of this citizen that already is living in an uncertain space and that it finishes in many cases being until kept out of society. Chapter 2 will allow knowledge next to the reality of the human being that chooses the street as housing and searchs to establish itself in a parallel society to the development. This express chapter in its context some factors of desestruturao of the family, the social being and the place of which many inhabitants of street had been removed.