Gynaecological fitness examinations were made on 25,413 women in employment by medical officers affiliated to the Industrial Medicine Research Association of the GDR, between 1972 and 1977. Gynaecological findings and diseases with impact upon occupational fitness were recorded from 22 per cent of the probands. Resulting limitations of employment were established for one to two per cent of them. - Significant correlations between occupational factors, on the one hand, and gynaecological diseases, on the other, so far have been established only for descent of genital organs in response to heavy physical work. - Gynaecological findings and diseases were recordable in the following order: 1. menopause (only for age group beyond 44), 2. tumours, 3. discorders of cycle, 4. positional alterations, 5. inflammatory disease, 6. mammary diseases. - The findings recordable from women on night shift (n = 1,339) were not higher than those recorded from women doing day shift work only. - No differences regarding the incidence of gynaecological findings were established either between women in full employment, on the one hand, and those doing reduced working hours, on the other.