Diabetes mellitus in the mother causes inflammatory-dystrophic changes in the vascular-tissue structures of the ovaries during the postnatal ontogeny of the offspring born from them. Pathomorpho-functional disorders in the internal vessels feeding the egg are the basis of the morphological disorders in the ovaries of the offspring. These processes lead to trophic disturbances, dystrophic and degenerative changes in tissue structures of the reproductive azo-ovaries in the late stages of the postnatal ontogeny of the offspring.