Preimplantation Genetic Testing for Structural Rearrangements (PGT-SR) Is a test enabling couples to significantly increase their chances of a healthy pregnancy. This technique is designed to identify embryos with the correct balance of genetic material before implantation, particularly beneficial for individuals with chromosomal rearrangements. By ensuring the selection of embryos without these structural issues, PGT-SR paves the way for families to reduce the risk miscarriages, and unsuccessful pregnancies.