The indications for preimplantation genetic testing is most commonly as follows
- High risk of chromosomal abnormalities
- Repeated miscarriages
- Previous birth of an abnormal baby
- Repeated implantation failures
- Elderly women.
The preimplantation genetic testing is performed in early embryo development stage the embryo biopsy can be carried out on day 3 e for better day 5 blastocyst stage which is a better and a safer method to choose. The embryos which are found to be healthy are then chosen for embryo transfer.