[Physical and sexual maturation of healthy girls during development of the reproductive system]

The physical and sexual development was evaluated in 488 healthy girls aged 0-18 years, 253 of them underwent an echographic examination of the internal genitalia. The processes of physical and sexual development of the girls' body were shown to be closely related, i.e. sexual maturation occurs at a definite level of physical development. During maturation of the reproductive system, several critical periods were established, each of them showing particular changes in the physical status, which correlated with those in the development of internal genitalia.