A labor and delivery nurse shares how her twin daughter's jaw healed due to in-utero pressure from her sister Taylor Deal was ...

Medically reviewed by Renita White, MD Conjoined twins occur when identical twins have fused bodies before they are born.

“Real Housewives of Potomac” alum Nneka Ihim announced she’s pregnant with twins, but devastatingly lost one of them in the first trimester. The TV personality revealed she and husband Dr ...

Identical twins are not as identical as previously assumed, according to a study published today (January 7) in Nature Genetics. Rather than having exactly the same DNA sequences, twins start ...

All of which makes them valuable to study. Twins share everything from their in-utero environment and parents to birthdate and the classroom setting. One unusual case study involved two-and-a-half ...

Nneka explained that after trying to get pregnant for two years, including three rounds of in vitro fertilization (IVF), she learned she was having twins. The Bravo star had two embryos ...

The authors suggested that the mutation might have arisen in one twin and was passed to the other in the womb through a shared placenta.

A labor and delivery nurse shares how her twin daughter's jaw healed due to in-utero pressure from her sister Ashley Vega is a writer-reporter at PEOPLE. She has been working at PEOPLE since 2024.