What causes a low rate of endocervical sampling?
Overall, around 80% of Pap smears reported by VCS include an endocervical component. Endocervical sampling is less likely in pregnant women and in post-menopausal women. Use of an endocervical brush as well as a spatula increases the chances that an endocervical component will be sampled. Endocervical brushes should not be used in pregnant women.