8542 local women, aged over 40, were screened using digital high-sensitivity equipment. High incidence of hormonal dysfunction of the breast and other breast diseases in healthy subjects were reported (60.1% +/- 9.3) (diffuse hormonal dysfunction--33.8% +/- 14.6). Early breast tumors (up to 1 cm), which generally remain undetectable, amounted to 0.19%. It was shown that mammographic data may be used in forming groups of risk for pre-morbid or morbid pathology among those requiring etiotropic therapy. In this connection, the role of timely medical advice can hardly be overestimated.