If you wear a bra that's either a little bit big or a little too small, will it cause your chest to not grow?
– Liz*

No. A girl's bra won't affect the growth of her breasts. That's because genes and hormones control breast growth, and it has nothing to do with what a girl wears.

Bras don't make breasts grow or stop growing, but wearing the right-size bra may help you feel more comfortable. Bras that are too small may cause breast pain because of how sensitive some girls' breasts can be as they grow. And bras that are too big won't offer enough support, which could also lead to discomfort if your breasts move or bounce around too much. Find a bra that's the right size for you and comfortable to wear.

Want your breasts to develop the way nature intended? Eat a variety of healthy foods and exercise regularly. And don't worry if you don't develop at the same rate as your friends: A girl's breasts can keep growing into her late teens.

Reviewed by: Mary L. Gavin, MD
Date reviewed: October 2008

Have a question? Email us.

Although we can't reply personally, you may see your question posted to this page in the future. If you're looking for medical advice, a diagnosis, or treatment, consult your doctor or other qualified medical professional. If this is an emergency, contact emergency services in your area.

*Names have been changed to protect user privacy.

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