Pre-Implantation Genetic Diagnosis/Screening

Couples who are exploring the possibility of assisted reproduction can opt for one of the two options: PGD: Pre-implantation Genetic Diagnosis or PGS: Pre-implantation Genetic screening. Both these procedures do not diagnose diseases but instead screen embryos for gene defects (single) or for extra or missing chromosomes that is referred to as chromosomal abnormalities.


Through this procedure, fertility specialists can screen the embryos for a genetic or chromosomal disease that they may inherit from their parents.  In this procedure, one or more cells are removed and are examined for genetic abnormalities. PGD/PGS is helpful in the following kind of situations:


  • When anyone in the family has a history of genetic disorders like cystic fibrosis that might be detrimental to the health of the embryo.
  • Women who plan to the conceive after 37 have a higher chance of delivering babies with chromosomal abnormalities and PGD/PGS screening would be quite useful in such a scenario.
  • If a parent carries a gene for haemophilia or the female partner has had a history of recurrent miscarriages.
  • Those couples who need HLA testing or when one of the partners has a chromosomal translocation.


After the screening process, only the good embryos are transferred so that the child does not inherit any abnormality. PGD/PGS screening are performed during the IVF cycle. In PGD/PGS screening, embryos or oocyctes are examined under a microscope and a biopsy is undertaken with a microscopic needle to identify genetic mutations that can cause diseases.


Usually single-gene disease can be diagnosed in an oocycte or embryo using this screening process. At Gaudium IVF Centre, our screening processes are quite robust and we will ensure that the child being born out of this process is not affected by any sex-linked disease or any other disorder.

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