The author writes about teacher´s knowledge about pupils with diabetes. Diabetes is an increasingly common disease today. Today, a lot of elementary school pupils encounter diabetes who act out and change their lives. The aim of the paper is to examine whether teachers are informed about diabetes in pupils, how much they know about the disease, and whether they receive education related to diabetes. It also identifies the problems faced by teachers and pupils and the way it works when it comes to working with an association of children with diabetes. The paper initially provides an insight into the emergence of special pedagogy and inclusive responses and education through a literature review, defining the occurrence of diabetes as a form of need to provide basic information about diseases and the consequences that the disease brings. The literature review includes previous research on the same or similar topics. The paper uses qualitative methodological research. The methodology of the work consists of a review of the relevant literature on these topics of conducting semistructured interviews with pupils ranging from diabetes and their teachers and presidents of associations of children with diabetes. The key results of this research shows that teacher´s knowledge and information about diabetes is insufficient, and much more work and collaboration is needed to change this situation. Teachers are familiar with the symptoms of the disease, but haven´t been informed about the consequences that diabetes entails and don´t know how to respond timely in crisis situations of diabetic pupils and therefore knowledge about the disease is insufficient.