In this paper we propose to raise some dilemmas of school children fell ill with cancer. When we realize their impediments to school we seek to bring into discussion issues related to barriers imposed by illness, social ties and the school institution itself. Our guided interventions by psychoanalysis have indicated that childhood, when entered in the hospital, undergoes changes that require a reorganization of libidinal investment of the child, parents and professionals involved in the process. Even though Brazilian law recognizes the right of children and adolescents admitted to the pedagogical-educational service, which choices are the subject child? What can a psychoanalyst, challenged in his city, to respond to these dilemmas without sacrificing their ethics in the bond established with the areas of health and education?