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Fertility Glossary

Freeze-all cycle

Freezing all embryos rather than transferring in the same cycle.

Treatment

In a freeze-all, every suitable embryo is vitrified and transfer is deferred to a later cycle. It is used when OHSS risk is high, progesterone rises early, the lining is not ideal, or PGT results are pending. Deferring does not reduce success and often improves safety.

Also known as: elective freeze, freeze all, segmented cycle

Related Australia guides

Sources

  • Royal Australian and New Zealand College of Obstetricians and Gynaecologists (ranzcog.edu.au)
  • European Society of Human Reproduction and Embryology (eshre.eu)

Last reviewed: 10 September 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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