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Fertility Glossary

Implantation failure

Embryos not implanting despite repeated good-quality transfers.

Female fertility

Repeated implantation failure is usually driven by embryo chromosomes; uterine factors such as polyps, adhesions, hydrosalpinx and chronic endometritis account for a minority. Investigation should be targeted rather than a broad panel of unproven immune tests.

Also known as: RIF, repeated implantation failure, failed transfers

Sources

  • ESHRE guidance (used where Canadian wording is unavailable)

Last reviewed: September 9, 2026. Written by the Antega Editorial Team. General information only โ€” always follow the advice of your own clinic, doctor or pharmacist.

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