Related Experiment Video
Updated: Jan 25, 2026

Establishing a Mouse Model of Thin Endometrium
Published on: November 1, 2024
The endometrium: is thickness all that counts?
1Department of Obstetrics and Gynaecology, Foch Hospital, Suresnes, France.
Abstract:
The commonly used 7 mm threshold for endometrial thickness in assisted reproductive technology lacks strong evidence and stems from outdated data. Recent studies show that live birth outcomes are comparable even with linings of less than 7 mm, particularly when using euploid embryos. Measurement variability, confounding factors and differing clinical practices limit the reliability of endometrial thickness as a standalone predictor. While extremely thin linings may warrant further evaluation, rigid cut-off values are unjustified. Endometrial thickness should be integrated into a broader, individualized assessment rather than drive clinical decisions in isolation.
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