PGT-M, or Preimplantation Genetic Testing for Monogenic disorders, is a procedure used during in vitro fertilization (IVF) to identify genetic diseases in embryos. This testing allows parents who are carriers of specific genetic conditions to select embryos that do not carry those conditions, reducing the risk of passing on genetic disorders to their children. The process involves creating embryos through IVF and then testing them for specific genetic mutations before implantation. PGT-M is particularly beneficial for families with a history of genetic disorders, as it helps ensure healthier outcomes for future generations.