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Fertility Glossary

PGT (preimplantation genetic testing)

Testing embryos for genetic or chromosomal conditions before transfer.

Genetics

PGT is the umbrella term for genetic testing of embryos created through IVF, covering PGT-A for chromosome numbers, PGT-M for a specific inherited condition and PGT-SR for structural rearrangements. It requires a biopsy, freezing and specialist laboratory analysis, adding cost and time. It does not guarantee a pregnancy or a healthy baby, and it cannot detect every condition.

Also known as: PGD, PGS, embryo genetic testing, preimplantation genetic testing

Sources

  • ESHRE/ICMART glossary and ESHRE laboratory guidance
  • SASREG

Last reviewed: 8 September 2026. Written by the Antega Editorial Team. General information only β€” always follow the advice of your own clinic, doctor or pharmacist.

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