This article puts to work a Deleuzio-Guattarian methodology of cartography using data from a pilot study of young schoolgirls’ "school-related" ill-health and well-being. Doing a cartography means setting up a "map" of various kinds of data produced by a multiplicity of desiring agents in various power-producing fields such as medicine, psychology, popular science, media, as well as narrative data from young girls and the two researchers themselves. Together, these data make up a wider machinic assemblage of Public Health in Sweden. As researchers, we understand ourselves as co-productive of this machinic assemblage that, in turn, is productive of a multiplicity of different Bodies without Organs (BwOs) that young schoolgirls fabricate for themselves. The analysis will show the specific types of BwOs that are fabricated, how they are fabricated, the modes of desire that come to pass on them, and thus what kinds of subjectivities of schoolgirls might be produced.