She sheepishly tried to hide it with a beanie hat, but the mum is now absolutely fuming.
All parents will agree that when your little one's hair starts to grow it's really special - so many don't want to get rid of it a hurry.
One mum was delighted when her little girl's hair grew thick, curly and "a beautiful blonde colour" after her hair dropped away at six weeks.
The mum said she was "in love with it" and they planned to let it grow out, even through her partner's step-mum advised them to give it a trim so it would grow faster.
After her partner's step-mum looked after her for the day, she was surprised to see her daughter come back with a beanie hat on.