Sierra Bernal: My Twin Sister is a Dwarf

 

13-year-old Sienna and Sierra Bernal are identical twins, but Sienna is half the size of her twin sister Sierra.
The twins' mother Chrissy Bernal was six months into her pregnancy when she realised she was having twins - baby Sienna was so small that she had not been picked up on previous scans.
But it was not until six years after her birth that Sienna was diagnosed with primordial dwarfism, a disorder which begins in the womb and means she has a smaller perfectly proportioned body size than others her age. Primordial dwarfism is so rare that that there are only 200 people in the world known to have the condition. Sienna is the only primordial dwarf in the world to have an average sized twin.
"Most of the time I don't really care I'm different - it actually makes me feel special," says Sienna. Awwh, so touching...