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Genetic Testing (PGT) in IVF: Is It Necessary?

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Genetic Testing (PGT) in IVF: Is It Necessary?

Introduction

As IVF technology advances, many couples are introduced to genetic testing of embryos, commonly known as PGT (Preimplantation Genetic Testing).

But a common question arises:
Is PGT necessary for everyone undergoing IVF?

The answer is—not always.

PGT can be a powerful tool in specific situations, but it isn’t required for every IVF case. This guide helps you understand what PGT is, when it’s recommended, and whether it’s right for you.

What is Genetic Testing (PGT) in IVF?

PGT is a laboratory technique used during IVF to test embryos for genetic abnormalities before they are transferred into the uterus.

How it works:

  • Embryos are created through IVF

  • A few cells are carefully taken from the embryo

  • These cells are tested for chromosomal or genetic issues

  • Only healthy embryos are selected for transfer

Types of PGT

1. PGT-A (Aneuploidy Testing)

Checks for the correct number of chromosomes.

  • Helps identify embryos with missing or extra chromosomes

  • Reduces risk of implantation failure or miscarriage

2. PGT-M (Monogenic Disorders)

Used when there is a known genetic disorder in the family.

  • Screens for specific inherited diseases

  • Helps prevent passing on genetic conditions

3. PGT-SR (Structural Rearrangements)

Used when one partner has chromosomal structural abnormalities.

When is PGT Recommended?

PGT is usually advised in specific situations:

1. Advanced Maternal Age (35+)

Higher risk of chromosomal abnormalities in embryos.

2. Repeated IVF Failures

Helps identify genetically normal embryos for transfer.

3. Recurrent Miscarriages

May be caused by chromosomal abnormalities.

4. Known Genetic Disorders

To prevent passing inherited conditions to the baby.

5. Severe Male Infertility

In some cases, may be recommended alongside ICSI.

Is PGT Necessary for Everyone?

No. PGT is not mandatory for all IVF patients.

You may not need PGT if:

  • You are younger with good egg quality

  • No history of genetic disorders

  • First-time IVF with no complications

In such cases, standard IVF may be sufficient.

Benefits of PGT

  • Improves embryo selection

  • Reduces risk of miscarriage

  • Increases chances of successful implantation

  • Helps avoid transferring genetically abnormal embryos

Limitations of PGT

  • Adds to the overall cost of IVF

  • Does not guarantee pregnancy

  • Not all embryos may survive biopsy or testing

  • Requires advanced lab facilities

PGT improves decision-making—but it’s not a guarantee of success.

Does PGT Increase IVF Success Rates?

PGT can improve implantation rates per transfer, especially in certain groups.

However:

  • It does not increase the total number of embryos

  • It helps select the best embryo for transfer

Success still depends on:

  • Age

  • Egg quality

  • Uterine health

Cost of PGT in India

  • PGT testing: ₹1,00,000 – ₹2,50,000 (approx.)

  • Additional to IVF treatment cost

Costs vary depending on the type of testing and clinic.

Common Myths About PGT

Myth 1: PGT Guarantees a Healthy Baby

Fact: It reduces risks but cannot eliminate all possibilities.

Myth 2: Everyone Needs PGT

Fact: It is recommended only in specific cases.

Myth 3: PGT Improves Fertility

Fact: It helps select embryos—it doesn’t improve egg or sperm quality.

How to Decide if PGT is Right for You

The decision depends on:

  • Your age

  • Medical history

  • Previous IVF outcomes

  • Genetic risk factors

A fertility specialist will guide you based on your specific situation.

Conclusion

PGT is a valuable advancement in IVF—but it’s not necessary for everyone.

For some, it can significantly improve outcomes. For others, it may not be required.

The key is personalized treatment—choosing what’s right for your journey, not just what’s available.