About 3% of live births in the U.S. result in twins. Fertility treatments, age, and family history can influence the chances of having twins. Twin pregnancies carry higher risks but receive extra ...
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Conjoined twin types and treatment

Conjoined twins are identical twins who did not fully split in the womb. Separation surgery for conjoined twins can be very ...
Having twins is not just a matter of chance; there's so much you can do to give birth to twins. There are two types of twins: fraternal twins and identical twins. Identical twins are born when an egg ...
Mono-mono twins are an incredibly rare type of identical twins who share both a placenta and an amniotic sac. While this ...
Fascination with twins and what twin studies tell us about human nature is universal. There is no question that behavioral and medical science advances have happened largely because twins yield a ...