The diploma thesis is focused on the topic of adult diabetes type 1 and type 2 education related to patients' self-care management. It provides the elemental overview of the illness, its complications, treatment and wider social impact and anticipated future development; it presents the general theories, procedures and principles applied to the field of adult education and describes the specifics of diabetes patient education. As a follow-up to the theoretical part, an empirical survey is carried out to verify the connection between the education of diabetics and their metabolic compensation as a main indicator of diabetes-related quality of life. In addition, the differences in compensation between patients treated within diabetes center, regular diabetologists'offices and practising physians' offices are examined.