Woman, 23, has a rare condition which means she only grew one breast

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.

My boobs won't stop growing — I have a rare condition

Small breasts: why you have them and what to do about it

Woman, 23, has a rare condition which means she only grew one

My boobs won't stop growing — I have a rare condition

Woman who grew THIRD boob has it removed after the unusual addition made her depressed - Mirror Online

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Rare condition has caused my breasts to grow six cup sizes in a year' - Nottinghamshire Live

I only grew one boob — and it's a real medical condition

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My boobs won't stop growing — I have a rare condition

Woman with Poland Syndrome only grew one breast

Breast development: Stages and how to spot growth signs - Flo