For individuals and couples undergoing IVF treatment in Kuala Lumpur, questions about genetic screening during IVF often arise. Understanding when genetic screening is considered, and what it involves, can help clarify whether additional testing may be appropriate as part of your IVF treatment pathway.
Genetic screening is not required for every IVF cycle. It is discussed when specific medical indications, age-related factors, or reproductive history suggest that additional genetic information may assist embryo selection and treatment planning.
At GenPrime Everlink Fertility Centre in Kuala Lumpur, decisions regarding genetic screening during IVF are guided by clinical findings and individual medical history.
What Is Genetic Screening in IVF?
Genetic screening during IVF typically refers to Preimplantation Genetic Testing (PGT) or related laboratory techniques used to assess embryos before transfer.
These tests analyse embryos for:
- Chromosomal number abnormalities
- Specific inherited genetic conditions
- Structural chromosomal rearrangements
Genetic screening is performed after fertilisation and before embryo transfer.
Learn more about Preimplantation Genetic Testing (PGT) →
When Is Genetic Screening Considered?
Genetic screening during IVF may be discussed in situations such as:
- Advanced maternal age
- Recurrent pregnancy loss
- Previous IVF cycles without successful implantation
- Known inherited genetic conditions in one or both partners
- Structural chromosomal abnormalities
- Severe male factor infertility
- Repeated embryo implantation failure
Each case requires careful medical evaluation. Not all patients benefit from genetic screening, and testing is recommended only when clinically relevant.
Advanced Maternal Age
As maternal age increases, the likelihood of chromosomal abnormalities in embryos also rises.
For patients in their mid-to-late 30s or older, genetic screening during IVF may be discussed to:
- Identify embryos without chromosomal number abnormalities
- Potentially reduce the likelihood of miscarriage related to aneuploidy
However, screening does not eliminate all pregnancy risks, and outcomes still depend on overall reproductive health.
Recurrent Pregnancy Loss
For individuals who have experienced repeated miscarriages, chromosomal abnormalities may be one contributing factor.
In selected cases, genetic screening during IVF may be considered to:
- Evaluate embryo chromosomal status
- Inform embryo selection
Other causes of miscarriage must also be evaluated through comprehensive fertility assessment.
Known Genetic Conditions
If one or both partners carry a known inherited condition, PGT-M (Preimplantation Genetic Testing for Monogenic Disorders) may be discussed.
This form of genetic screening during IVF is designed to assess embryos for a specific genetic mutation.
Referral for genetic counselling may be recommended before proceeding.
Structural Chromosomal Rearrangements
If a partner carries a balanced translocation or structural rearrangement, PGT-SR may be considered.
This testing evaluates embryos for chromosomal structural abnormalities that may affect implantation or pregnancy development.
Types of Genetic Screening in IVF
Depending on medical indication, the following tests may be discussed:
PGT-A
Screens for abnormalities in chromosome number (aneuploidy).
PGT-M
Used when there is a known inherited genetic disorder.
PGT-SR
Used when a structural chromosomal rearrangement is present.
Non-Invasive Chromosome Screening (NICS)
Analyses genetic material released by embryos into the culture medium without biopsy.
Understand Non-Invasive Chromosome Screening (NICS) →
What the Genetic Screening Process Involves
If genetic screening is incorporated into your IVF treatment process:
- Embryos are created through IVF.
- At the blastocyst stage, a small number of cells may be biopsied (for PGT).
- Samples are analysed in a specialised genetics laboratory.
- Results are reviewed before embryo transfer.
Because results require laboratory processing, embryo transfer typically occurs in a Frozen Embryo Transfer (FET) cycle.
Learn about Frozen Embryo Transfer (FET) →
Limitations of Genetic Screening
It is important to understand that:
- Genetic screening does not guarantee pregnancy.
- It does not eliminate all genetic risks.
- It does not improve egg quality.
- Mosaic or inconclusive results may occur.
Broader fertility factors — including uterine health, maternal age, and embryo development — continue to influence IVF outcomes.
Is Genetic Screening Required for All IVF Cycles?
No. Genetic screening during IVF is not routinely required.
It is considered when medical history, age, or reproductive outcomes suggest that additional genetic information may assist in treatment planning.
For many patients, standard IVF without genetic screening remains appropriate.
Frequently Asked Questions
Does genetic screening improve IVF success rates?
Genetic screening may help identify embryos without certain chromosomal abnormalities, but overall success depends on multiple fertility factors.
Is embryo biopsy safe?
Embryo biopsy is performed by trained embryologists under controlled laboratory conditions. Risks and limitations are discussed during consultation.
Will all embryos be suitable for testing?
Embryos must reach an appropriate developmental stage before biopsy can be performed.
Is genetic screening necessary for younger patients?
Not always. Suitability depends on medical history, not age alone.