Tue, 21-Oct-2025

Guinness World Record-winning twins with uncommon condition

Guinness World Record-winning twins

Sienna Bernal, 23, from Texas, was born with primordial dwarfism, which is rare. She and her twin sister Sierra have the rarest form of discordant twinning. Sienna had Dandy-Walker Syndrome before she was born and was smaller than “twin A”. A uncommon ailment gave a woman and her twin sister a Guinness World Record. Sienna … Read more