PGT-A (Preimplantation Genetic Testing for Aneuploidies)

PGT-A (preimplantation genetic testing for aneuploidies) is a laboratory test performed on embryos to screen for chromosomal abnormalities before transfer during an IVF cycle.

Clinical significance

PGT-A can help clinicians identify euploid embryos, potentially reducing miscarriage rates and increasing the likelihood of a healthy pregnancy, especially for individuals with recurrent pregnancy loss or advanced maternal age.

Common confusion

Some believe PGT-A guarantees a healthy baby, but it only assesses chromosome number and does not detect all genetic or developmental issues.

Related reference

/glossary/euploid →/glossary/mosaic-embryo →/fertility/ivf-success-rates →/clinical/pgta-explained →/fertility/why-ivf-fails →← Back to Glossary Index

Used in

Euploid Embryo →Aneuploid Embryo →Mosaic Embryo →PGT-A Explained (Clinical) →IVF Success Rates by Age →

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

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