Genetic testing for embryos, often referred to as preimplantation genetic testing (PGT), is a procedure used during in vitro fertilization (IVF) to assess the genetic health of embryos before they are implanted into the uterus. PGT can help identify genetic abnormalities, chromosomal abnormalities, or specific genetic conditions within the embryos, allowing for the selection of the healthiest embryos for implantation.