The article is based on discussions that have taken place in the praxeological research group at the University of Bergen, about the differences between studies on nursing in philosophical and sociological perspectives. The purpose of this text is to discuss possibilities and limitations in doing studies on nursing practices in the perspective of the philosopher Michel Foucault. Three studies in nursing are used as examples. One of the studies was about body washing, the second about nursing documentation and the third about exclusion and inclusion of parents when children are in the hospital. The methodological basis for the studies was a discussion with Foucault on how he studied punishment. The article’s conclusion is that researchers who go out into the world, to examine how practices are actually being made, move out of the philosophical methodology.

Keywords: Discipline, dispositive, methodology, nursing, praxeology