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Preimplantation Genetic Testing (PGT)

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Preimplantation genetic testing (PGT) is a procedure used during in vitro fertilization (IVF) to examine embryos for genetic anomalies before they are transferred into the uterus. This testing helps identify genetic problems that could lead to implantation failure, miscarriage, or birth defects in the child. PGT allows potential couple to make informed decisions regarding embryo selection and improve the chances of a successful pregnancy.

Myths vs. Facts

PGT promises a perfect baby.

Myth: PGT promises a perfect baby.
Fact: PGT reduces the risk of certain genetic/chromosomal problems, but it cannot assurance a child free of all health conditions.

PGT harms or weakens the embryo.

Myth: PGT harms or weakens the embryo.
Fact: Modern trophectoderm biopsy techniques are safe, and embryos continue to grow normally in most cases when performed by trained experts

PGT is only for older women.

Myth: PGT is only for older women.
Fact: It is useful for couples with recurrent pregnancy loss, carriers of genetic disorders, severe male factor infertility, repeated IVF failures, and translocation carriers.

PGT replaces prenatal testing.

Myth: PGT replaces prenatal testing.
Fact: PGT minimises the risks but do not substitute prenatal tests.

PGT always increases pregnancy success rates.

Myth: PGT always increases pregnancy success rates.
Fact: PGT improves outcomes mainly for specific groups like older women, recurrent miscarriages, or known genetic risks—not for everyone.

Each and every genetic trait in the embryo are checked with PGT

Myth: PGT checks all genes in the embryo.
Fact: No — PGT checks only specific chromosomal or single-gene conditions, not every genetic trait.

Accuracy PGT is 100%.

Myth: PGT is 100% accurate.
Fact: Accuracy is not absolute, but about 95–98%. Results may be affected by some rare errors and mosaicism.

PGT determines things like intelligence or physical traits.

Myth: PGT determines things like intelligence or physical traits.
Fact: PGT cannot identify or select for complex traits. It only screens for major chromosomal aneuploidies or specific disease-causing genes.

PGT is not needed unless you have genetic diseases.

Myth: PGT is not needed unless you have genetic diseases.
Fact: PGT can also help reduce miscarriages, especially for women above 35 and couples with recurrent pregnancy loss.

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