PGT-Rh  is  a  specialized  preimplantation  genetic testing technique used during IVF to determine the Rh blood type  of  embryos  before  implantation. It helps identify embryos that are Rh-compatible with the mother, reducing the risk of  immune  reactions. This testing is particularly important for Rh-negative mothers   with   a   risk   of   Rh   incompatibility.  By selecting   compatible    embryos,    PGT-Rh    helps prevent    Hemolytic    Disease    of    the   Newborn (HDN)and improves pregnancy safety.