IVF Genetic Testing

Fertility treatments have come a long way, and now fertility specialists can use techniques such as pre-implantation genetic testing to ensure the best embryos are used in your IVF journey, therefore having the greatest chance of success.

What is it?

Perth Fertility Specialist Dr Hunter explains preimplantation genetic testing.

Why is it used?

Why do we use genetic screening in IVF treatment? Dr Hunter explains in this short video.

Who is it for?

Who is it for and how does genetic screening influence your IVF journey? Perth Fertility Specialist Dr Hunter explains.

What is pre-implantation genetic testing?

Pre-implantation genetic diagnosis (PGD), is the process of removing a sample of cells from an embryo created using IVF or ICSI to test for specific genetic conditions, such as cystic fibrosis or Duchenne Muscular Dystrophy, before transferring the embryo to your uterus.

PGS or Pre-implantation genetic screening, is the process of removing a sample of cells to test the chromosome copy number in an embryo.

genetic testing

Humans have 23 pairs of chromosomes, that’s 46 in total. Having an extra or a missing chromosome causes disorders such as Down Syndrome.  Keep in mind that PGS is not looking for specific disease diagnosis. It is merely screening an embryo to ensure it has the correct number of chromosomes before it is transferred back into the uterus.

Why it’s important to test the embryos?

Embryos may look ‘normal’ under laboratory conditions, but even those that grow to the blastocyst stage, which is around day five to six, might not have the right number of chromosomes. If they are transferred into the uterus, they will likely result in no pregnancy or an early miscarriage. Using PGS improves the chances of a pregnancy with an embryo that does not have a chromosomal abnormality detected and reduces the time to pregnancy. PGS may help the following patients;

genetic testing
  • When you have had more than three documented failed transfer cycles.
  • Patients who are 35 years and older.
  • When you have a history of recurrent pregnancy losses.
  • Patients who have had a previous chromosomal abnormality pregnancy.

Types of testing

An embryo biopsy removes about three to eight cells from each day five embryo, also known as a blastocyst, then the cells are sent to a lab for testing.

Need more information?

So, while these techniques are a fantastic tool that can be incorporated into your IVF cycle, you need to be aware of the strengths and limitations of preimplantation genetic testing. Dr Tamara Hunter can help guide you regarding the appropriate use of these test and whether you may benefit from incorporating them into your IVF cycle.

Dr Tamara Hunter

Dr Tamara Hunter is the only female Certified Specialist in Reproductive Endocrinology and Infertility (CREI) in Perth. “My role is to help you identifying the problem, and choosing the right treatment with you and your family. In the Fertility area I help with identifying the causes why you’re not falling pregnant, or assist with sperm, egg or embryo preservation.”

IVF Treatment

IVF treatment can be used to overcome a range of fertility issues.

Read more

IVF Cycle: Fresh vs Frozen

Read about the pros and cons of frozen and fresh IVF cycles.

Read more

Your IVF Journey

IVF isn’t something that can be done quickly. Read more about the journey when you consider IVF treatment.


Useful links

IVF isn’t something that can be done quickly. Check out the IVF journey in more detail and read about IVF Success Rates.

  • What are the IVF risks? Read more about your chances with IVF.
  • What to expect with IVF? A blog article about your options.
  • How to prepare for IVF? Some useful advice
  • Dr Hunter

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