The effects of the Bethesda System 2014 on endometrial cell reporting and follow-up endometrial biopsies in women 45 years of age and over

The implementation of TBS 2014 reduced the frequency of reporting benign-appearing endometrial cells. The follow-up biopsy rate has remained essentially the same, but the total number of biopsies performed decreased, with a similar low yield of significant abnormalities.