Although it is partly the cause for the rise in twin birth rate in recent years in vitro fertilisation (IVF) could also be the most promising solution to reducing unintended twin births argues an expert from Brown University. The twin birth rate in the US has surged over the last 30 years mostly because of reproductive technologies including in IVF. Twins typically live healthy lives but many of the serious medical complications of pregnancy and fetal development - such as preterm birth or low birth weight - are more common and difficult in twin pregnancies compared to in singleton ones
