PGT-A Decoder
Enter your PGT-A results and see what they mean, ranked for transfer, with the live-birth odds for each embryo.
Not medical advice. These are population estimates from research, not a
prediction for your embryo. Samples are small and the biopsy tests the placenta, not the baby.
Bring this to your clinic or genetic counsellor. You have the right to transfer any embryo.
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Load your results
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Your report
Tap an embryo to learn more
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What next steps would you like to explore?
The research behind these numbers
Every estimate traces to published data. Read any of it yourself.
Euploids
↗ Irani 2018 - euploid LIVE BIRTH by grade & day (good day5 72.8%; day5 60.4% vs day6 44.8%)↗ Brolinson 2023 - euploid LIVE BIRTH by day of blastulation (day5 55%, day6 44%, day7 21%)↗ Lindner 2025 - own-egg euploid LIVE BIRTH declines with age (55.8% at 35-37 to 43.4% at >=45); age-flat with donor eggs (n=15,013)↗ Grade can outweigh day - euploid high-grade Day 6 live birth 50.4% beats low-grade Day 5 40.7% (n=4,202)↗ Day 5 vs Day 6 euploid predictive model - blastocyst quality and day predict live birth; maternal age does not (p=0.088)Mosaics
↗ Viotti 2021 - 1,000 mosaic transfers, ranking systemSegmental aneuploids
↗ Segmental aneuploid transfer outcomes (~22%)↗ TE (placenta) vs ICM (baby) concordance - whole-chr ~97%, segmental only ~43% (Popovic 2019, PMID 30418565)Chaotics
↗ Retesting chaotic embryos - euploid on rebiopsyWhole-chromosome aneuploids
↗ Kim 2022 - TE biopsy vs rebiopsy concordance (whole-chr result >99% reliable; segmental aneuploid 56.6%; mosaic 15-18%)↗ TE/ICM concordance meta-analysisEuploid cumulative (banking)
↗ Pirtea 2021 - three euploid transfers, 92.6% cumulative live birth (n=4,429)↗ Gill 2024 - five euploid transfers, 98.1% cumulative live birth (n=123,987)Because women after 38 deserve more.
You are not alone, and you have options. Wherever you are in this, there is usually a next step worth taking. Let's find yours.
Analysis Loading…
Hey fellow IVF traveller. The road we walk is often long and messy. If you’ve gone deep on your PGT-A results, this tool probably won’t change what you already know. And the live birth numbers are population statistics for embryos with similar characteristics, not a prediction for yours. Nobody can give you that. What this tool can do is help you make sense of what you’re looking at and work out what to ask or do next.Are you ready?