PGS: Preimplantation genetic screening

An embryo with a chromosomal abnormality is more likely to become impaired or miscarried. Pre-implantation chromosomal screening tests the chromosomes of the embryos modified by in vitro fertilization and screening for embryos with normal chromosomes to prevent fetal pregnancies with implant failure, spontaneous abortion, and chromosomal abnormalities.

Preimplantation genetic screening may be able to help elderly women and women who have experienced habitual abortions or have had failures in their previous in vitro fertilization procedure. However, because of the possibility of stomach cancer due to diagnostic limitations and embryo mosaicism, we recommend that you receive prenatal screening through chorionic villus screening or amniocentesis even if pregnancy has been achieved by pre-implantation chromosome screening.