02/09/2026
Preimplantation Genetic Testing (PGT) aims to support a healthier future for families by identifying certain genetic abnormalities in embryos, helping guide embryo selection during IVF, and reducing the risk of passing on specific inherited conditions. 🧬
There are three main types of PGT used in preimplantation genetic testing:
🔴 PGT-A – Preimplantation Genetic Testing for Aneuploidy
PGT-A screens embryos for chromosomal abnormalities. These abnormalities may be associated with recurrent miscarriage, pregnancy loss, or certain birth defects. The test helps identify embryos with the expected number of chromosomes for consideration for transfer.
🔴 PGT-M – Preimplantation Genetic Testing for Monogenic Disorders
PGT-M can be used when there is a known risk of an inherited single-gene condition within the family. Conditions such as cystic fibrosis, haemophilia, and thalassaemia may be investigated using this approach, helping identify embryos unaffected by the specific condition being tested.
🔴 PGT-SR – Preimplantation Genetic Testing for Structural Rearrangements
Some individuals carry balanced structural chromosomal rearrangements that may contribute to reproductive difficulties or recurrent miscarriage. PGT-SR can be used to evaluate embryos for chromosomal imbalances related to these rearrangements.
Each type of PGT has a different purpose, and the appropriate approach depends on the couple’s medical and genetic history. 🤍
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