Elective single embryo transfer

In some cases, doctors or patients may choose to select just one ideal embryo to be transferred into the womb. The transfer might be done via delayed frozen embryo transfer or a fresh cycle embryo transfer. The remaining embryos may be preserved for future use. This process is known as elective single embryo transfer.

Elective single embryo transfer or eSET is opted for many reasons which include prevention of high order multiple births and the associated health risks to the mother. Preterm births, low birth weights and adverse health in the infants are more common in multiple births than in single births.