What Is PGT Testing?

Preimplantation genetic testing, or PGT, analyzes embryos for genetic or chromosomal abnormalities before embryo transfer.

How PGT Works

A small number of cells are removed from the outer layer of the embryo and analyzed in a genetics laboratory. This testing helps identify embryos with normal chromosome numbers.

Types of PGT

PGT-A screens embryos for chromosomal abnormalities. PGT-M tests for specific inherited genetic diseases. PGT-SR detects structural chromosome rearrangements.

Why It Matters in IVF

PGT can help guide embryo selection in some cases.

Related reference

/fertility/ivf-success-rates →/fertility/ivf-success-by-age →/glossary/blastocyst →/glossary/mosaic-embryo →/glossary/embryo →← Back to Glossary Index

Used in

IVF Success Rates →IVF Success by Age →Blastocyst →Mosaic Embryo →Embryo →

This content defines terminology for educational orientation. It does not constitute medical advice.

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