Uterine dynamics: impact on the human reproduction process.

This review assesses data on the possible relationship between the contractility of the non-pregnant uterus and the human reproduction process. The possibility of assessing non-invasively uterine contractility using ultrasound scans has improved understanding of hormone regulation and the influence of uterine contractility on the human embryo implantation process in both natural and ovarian stimulation cycles. Contractions of the non-pregnant uterus are influenced by ovarian hormones and, presumably, partake in the in-vivo fertilization and embryo implantation processes in humans. Approaches aimed at either stimulating or inhibiting uterine contractions could be instrumental in improving pregnancy rates after the use of assisted reproductive technologies.

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