Preimplantation Genetic Testing, or PGT, is a scientific process that checks embryos for genetic conditions before they're transferred to the uterus. This is done during an IVF (In Vitro Fertilization) cycle. PGT can spot genetic diseases, ensuring only healthy embryos are chosen for pregnancy.

PGT is a great option for many people, especially women over 37, couples with a history of genetic diseases, those who have faced multiple miscarriages, or anyone undergoing IVF treatments. It's all about giving your future family the healthiest start possible.

First, IVF is used to create embryos. Then, a few cells are carefully removed from each embryo. These cells are tested for genetic abnormalities. Finally, only embryos without these issues are selected for pregnancy, boosting the chances of a successful birth.

Preimplantation Genetic Testing for Aneuploidy (PGT-A) is a screening process for embryos, ensuring they have the correct count of 23 chromosome pairs, including 22 pairs of autosomes and one pair of sex chromosomes (XX or XY). This precise chromosome number characterizes a healthy embryo.

Preimplantation Genetic Testing for Monogenic Disorders (PGT-M) is another form of early genetic diagnosis. This test screens embryos for specific single gene or monogenic disorders that could be inherited from the mother or father.

Preimplantation Genetic Testing for Structural Rearrangement (PGT-SR) focuses on identifying chromosomal structural changes, such as balanced translocations and inversions, which do not alter the total number of chromosomes but can still lead to genetic issues.

While PGT is powerful, it can't catch every genetic condition. Genetic counseling is recommended to understand what PGT can and can't do. In some cases, further prenatal testing might be advised.

Like any medical procedure, PGT has its risks, including false positives or negatives. A chat with a genetic counselor can help weigh the benefits and risks.