(CNN) — Giving birth to triplets, quadruplets or even more has become increasingly less common in the United States. The rate of triplet and higher-order births in the US declined 62% between 1998 and ...

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 ...

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. Twins—and the media—annually descend on Twinsburg, ...

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 ...

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 ...

Fertility experts have attributed the rising cases of higher-order multiple pregnancies and births in Nigeria, including triplets, quadruplets and quintuplets, to the increasing use of Assisted ...