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PGT-A · KANAA FERTILITY

PGT-A (Preimplantation Genetic Testing for Aneuploidy)

A genetic test that checks whether your embryo has the right number of chromosomes before transfer — helping guide which embryo gives you the best chance of a healthy pregnancy. Available at our KK Nagar and Mylapore clinics in Chennai.

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5–10 Cells
Biopsied for Testing
Day 5
Blastocyst Stage
On request
Added Cost

PGT-A (Preimplantation Genetic Testing for Aneuploidy) at Kanaa Fertility checks whether your embryo has a normal number of chromosomes (euploid) before transfer — helping identify embryos with the best chance of a healthy pregnancy. Two clinics in KK Nagar & Mylapore, with in-person & online consultations.

WHAT IS PGT-A

PGT-A — Checking Your Embryo's Chromosomes

Preimplantation genetic testing for aneuploidy.

Preimplantation genetic testing for aneuploidy refers to a process in which a few cells from the trophectoderm of the blastocyst are biopsied and sent for genetic analysis.

This identifies whether the embryo is genetically normal (euploid) or genetically abnormal (aneuploid).

Genetic Screening

Checks chromosome number, not the embryo's full genetic makeup.

Done at Blastocyst Stage

Testing happens once your embryo has grown to day 5, the same stage used in blastocyst culture.

Guides Your Transfer

Helps your embryology team identify which embryo may have the best chance of success.

HOW IT WORKS

How PGT-A Works

1
Embryo Formation
Your embryo is formed by IVF or ICSI, as usual.
2
Extended Culture
The embryo is allowed to grow until day 5, becoming a blastocyst.
3
Cell Biopsy
About 5 to 10 cells are removed from the trophectoderm using laser.
4
Genetic Analysis
The cells are sent for genetic analysis to check the embryo's chromosome number.
WHO IS IT ADVISED FOR

Who Is PGT-A Advised For?

Older Age Couples

Chromosomal abnormalities become more common with age.

Recurrent Implantation Failure

When embryo transfers haven't succeeded despite good-quality embryos.

Recurrent Pregnancy Loss

When pregnancies have been lost more than once.

Family History of Specific Gene Disorders

This is tested through a related but different test called PGT-M, not PGT-A.

WHAT'S INVOLVED

What's Involved

PGT-A is performed as part of your IVF or ICSI cycle, once your embryo reaches the blastocyst stage. Added cost to be confirmed by the clinic.

RISKS & WHAT TO EXPECT

Risks & What to Expect

  • What Is Mosaicism? — Mosaicism is when more than one type of cell is present in the same embryo — some cells euploid (normal), some aneuploid (abnormal). Because of this, there's a chance of a false positive or false negative result, depending on which cells were sampled during the biopsy.
  • Small Risk to the Embryo — Pending doctor sign-off before publishing — this line was proposed, not sourced from the live page.
Your embryology team will discuss what your results mean, including the possibility of a mosaic result, before any decisions are made about transfer.
ALTERNATIVES

Alternatives to PGT-A

If specific inherited gene disorders run in your family, a related test called PGT-M may be more appropriate — ask your specialist which is right for you.

Your specialist will explain which testing option, if any, is right for your situation.
WHY KANAA

Why Choose Kanaa Fertility?

Experienced Fertility Specialists

A skilled team specialised in reproductive medicine.

Careful, Close Monitoring

Scans and dose adjustments guided at every step.

Personalised Protocols

Your treatment designed around your body and diagnosis.

Compassionate, Patient-First Care

Support at every step of your journey.

Two Convenient Locations in Chennai

KK Nagar & Mylapore, with flexible scheduling.

YOUR QUESTIONS

Questions to Ask Your Doctor

  • Why is PGT-A being recommended for our embryos?
  • What happens if we get a mosaic result?
  • How many of our embryos will be tested?
  • What happens to embryos found to be aneuploid?
  • Is PGT-M more appropriate for our situation, given our family history?
FAQ

Frequently Asked Questions

What is PGT-A?

Preimplantation genetic testing for aneuploidy refers to a process in which a few cells from the trophectoderm of the blastocyst are biopsied and sent for genetic analysis.

Why is it done?

This identifies whether the embryo is genetically normal (euploid) or genetically abnormal (aneuploid).

What is mosaicism?

It's the condition where more than one type of cell is present in the same embryo — both euploid and aneuploid cells. Because of this, there's a chance of a false positive or false negative result, depending on which cells were taken during the biopsy.

Who is it advised for?

Mainly older age couples, those with recurrent implantation failure, or recurrent pregnancy loss. Testing for specific gene disorders that run in the family is a related but different test, called PGT-M.

Is there a risk to the embryo during biopsy?

Pending doctor sign-off before publishing — this answer was proposed, not sourced from the live page.

FAQs

Pre implantation genetic testing for aneuploidy refers to  a process in which a few cells from the tropho ectoderm of the blastocyst are biopsied and  sent for genetic analysis 

This will identify if the embryo is genetically normal (euploid) or genetically abnormal(aneuploid)

The embryo is formed by the process of IVF or ICSI as usual and allowed to grow till day 5

Then a few cells (about 5-10)are removed by use of laser and sent for genetic analysis

It is the condition where more than one type of cells are present in the same embryo-that is both euploid and aneuploid cells 

Hence there maybe the chance for false positive or false negative results depending on which cells were taken in the biopsy 

It is advised for mainly 

  • Older age couples
  • Recurrent implantation failures
  • Recurrent pregnancy loss
  • Testing for specific gene disorders which run in the family-this is called as PGT-M

Choose With Confidence

Ask about PGT-A as part of your IVF or ICSI cycle at Kanaa Fertility, Chennai — KK Nagar & Mylapore.