This lecture aims to acquaint students with the basics of hygiene for children and teenagers, major hygienic problems in this area, and the organization of health services for children and teenagers. It also provides a general overview of health indicators for children and teenagers in the region, emphasizing the importance of hygiene in their education and training. The concept of Hygiene of Children and Teenagers (HCT), its goals, issues, and modern challenges within the context of the republic are also discussed.