Conjoined twins are two babies who are born physically connected to each other. Conjoined twins develop when an early embryo only partially separates to form two individuals. Although two fetuses will develop from this embryo, they will remain physically connected — most often at the chest, abdomen or pelvis. read more
When the bodies of twins connect, they are called conjoined twins. Conjoined twins begin as a single fertilized egg. Usually, a single egg develops into 1 baby. read more