Women who experience recurrent miscarriages may be good candidates for IVF with preimplantation genetic screening (PGS), which enables fertility specialists to test an embryo for genetic and chromosomal problems that can lead to miscarriage. Those couples who have struggled with recurrent miscarriage, failed IVF, or unexplained infertility can strongly prefer PGS to help identify chromosomally-sound embryos for transfer back into the uterus.