As a result of the examination of 14500 children, living in the Rostov Region, data have been obtained, characterizing the level and nature of endocrine disturbance in rural children, being evaluated from such aspects as the individual physical and sexual development. Endocrine disease in the rural children (116.2 +/- 3.2%) does not exceed these abnormalities observed among the town children. The prevalence of endocrine diseases increases from 90.3 +/- 5.1% in the children, ranging in age from birth to 7 years old, to 143.2 +/- 5.3% in the schoolchildren. Girls are more often developing obesity (t = 4.2) and endocrine abnormalities (t = 4.6), whereas boys are suffering from delay of the growth (t = 3.5) and sexual maturation. The standard glucose tolerance test, performed in the children at a high risk of diabetes mellitus (with aggravated heredity in regard to diabetes mellitus and obesity of the II, III and IV stages) has revealed intolerance in 59% of the children, of whom 2.2% had diabetic type curves. Based on the data on endocrine abnormalities, a mode of the organization structure for the children's endocrinological service was developed.