DENVER -- After 2017 guidelines recommended single embryo transfer in most situations, the multiple birth rate dropped by 58%, according to a large national registry study. Moreover, single embryo ...

Two baby twin infants are lying down on grey sheet. Twins, triplets, and other multiples have long caught the attention of "singletons," or those of us born without a built-in best friend by our sides ...

Globally, mothers are having fewer children. Yet despite this latest observed decline in birth rates, the number of twins and triplets being born today is higher than ever before. This is the first ...

Special names for multiple births help identify the number of babies born at once. The development of assisted reproductive technologies, like in vitro fertilization, has led to an increase in ...

The rate of triplet and higher-order multiple births in the United States declined 62 percent from 1998 to 2023, according to the Centers for Disease Control and Prevention. Most of the downturn ...

Fewer and fewer twins and triplets are being born through IVF in Australia, bringing IVF and overall Australian multiple birth rates closer together, a new report by UNSW Sydney medical researchers ...

It’s predicted the rate of multiple births could rise across all countries between 2050 and 2100. Larysa Dubinska/ Shutterstock Globally, mothers are having fewer children. Yet despite this latest ...