Multiple Births

Multiple births—the delivery of twins, triplets, or more—is common with fertility treatments. During the use of assisted reproductive technology (ART)—such as in vitro fertilization (IVF)—multiple births primarily result from transfer of more than one embryo during the procedure.

If more than 1 embryo is replaced in the womb as part of IVF treatment, there's an increased chance of producing twins or triplets. Having more than 1 baby may not seem like a bad thing, but it significantly increases the risk of complications for you and your babies.