Abstract. The diseases of the gastrointestinal tract are located on one of the leading places in the structure of the morbidity among schoolchildren. The increasing prevalence of the digestive system diseases including ulcer disease has been observed among the young population at present time. For the schoolchildren and teenagers, the decrease in parameters of vital activity and social functioning is very important5, among which the leading place is occupied by the difficulties associated with learning process, physical exercises and sports, usual daily activity6. In the majority of patients referred to the pediatrician the debut of chronic diseases the gastrointestinal tract occurs at the young age. The special place in the identification of the functional disorders in the latently developing chronic diseases of the digestive system is allocated to physical examinations8, questionnaire usage during medical surveys. However today there is established poor quality of the medical surveys in the schools. Thus, there is observed delayed underestimation of the pathology of gastrointestinal tract in the schoolchildren
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