Becca Butcher, 23, from Barnsley, South Yorkshire, has Poland Syndrome, which means one breast is significantly smaller than the other - her right one is a D cup while the left is an A cup.
It's bad, it's really bad': Regina woman waits months for a breast biopsy amid backlog
Young woman born with medical condition develops just one breast
Woman who grew THIRD boob has it removed after the unusual addition made her depressed - Mirror Online
Woman has rare condition that means she only grew one breast
Breast Cancer: Symptoms, Causes, Stages, and Treatment
Rare condition causes woman's breasts to grow four bra cup sizes in just one year - and they won't stop growing
My boobs are totally different sizes - people think I'm mad for refusing free boob job but I love them
Rare condition causes woman's boobs to grow six cup sizes in 14 months - World News - Mirror Online
Poland Syndrome: What it's like to be a woman born with one boob
Woman baffles doctors by only growing one boob through puberty - Daily Star
Rare condition causes woman's boobs to grow six cup sizes in 14 months - World News - Mirror Online
Breast Engorgement: Symptoms and Relief
Woman, 23, has a rare condition which means she only grew one
Your growing pregnant belly: What can you expect? - Flo