Pre-implantation genetic testing (PGT) is a specialized technique used in assisted reproductive technology (ART) procedures to identify genetic abnormalities within embryos before they are implanted in the uterus. This testing can help ensure healthy pregnancies for patients who are at risk of passing on genetic disorders to their children. PGT can be categorized into several types, including PGT for aneuploidy (PGT-A), PGT for monogenic/single gene disorders (PGT-M), and PGT for chromosomal structural rearrangements (PGT-SR).

By identifying genetic abnormalities in embryos prior to implantation, PGT allows healthcare providers to select and transfer only those embryos that are deemed chromosomally normal, therefore increasing the chances of a successful pregnancy and reducing the risk of genetic conditions in offspring. This technology is particularly beneficial for couples with known genetic risks, such as carriers of chromosomal translocations, single gene disorders, or advanced maternal age, as it provides a way to prevent the transmission of these conditions to future generations.

Overall, pre-implantation genetic testing plays a crucial role in reproductive medicine by offering individuals and couples with genetic risks the opportunity to have healthy pregnancies and children while minimizing the chances of passing on inherited disorders.