Sean Lauber։ New Study Explores Whether Uterine Contractions Affect IVF Success
Sean Lauber, Founder of Remembryo, shared on LinkedIn:
“The uterus naturally makes gentle wave-like contractions (called uterine peristalsis) throughout the menstrual cycle. Some researchers think that if these contractions are too frequent around the time of embryo transfer, they could move the embryo away from where it needs to implant.
In this new meta-analysis, Assmanni Adam et al. (2026) combined data from 4 prospective studies including 863 embryo transfer cycles.
Women with higher uterine peristalsis around the time of embryo transfer were less likely to achieve a clinical pregnancy.
However, the evidence was rated as very low certainty. The studies all measured uterine contractions in different ways, mostly included older day 2 or day 3 embryo transfers, and didn’t have enough data to see if live birth rates were also affected.
The authors conclude that more research is needed before measuring uterine contractions becomes part of routine IVF care.
This post is a quick look at one study, rather than a full breakdown on Remembryo.
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