Removing cervical mucus before performing an embryo transfer in an assisted reproduction treatment such as ICSI is a practice that has raised doubts and controversy.
Therefore, this study evaluated the success rate (clinical pregnancy rate) after removing the cervical mucus with a swab and with a cannula, as well as after keeping the cervical mucus, for the embryo transfer. However, no significant differences in the success rate were found among these different evaluated groups.
Read the full article on: Clearing cervical mucus in IVF: Why this medical step is unnecessary ( 42).
By Silvia Azaña Gutiérrez B.Sc., M.Sc. (embryologist).
Last Update: 04/30/2026
