Is it true that when you or another person touches your boobs, they will get bigger? – Katie* No, it's not true. Touching or massaging breasts does not make them grow. There's a lot of wrong information about breast development out there. Some of the things you may hear are outright cons — like special creams or pills that make breasts bigger. (They don't work!) Others are myths — some girls who want smaller breasts think that sleeping in a bra or wearing a bra that's too small can keep breasts from growing, but that's also not true. In reality, genes and hormones determine breast growth. Some girls develop earlier, others later, and a girl's breasts can keep growing and changing into her late teens. Every girl wants to be proud of her body. There are things you can do — like eating well and getting enough exercise and sleep — to help your body develop in a healthy way. Don't feel shy about talking to your health care provider if you have questions about your body and how it is developing. Your doc is used to answering questions like this, and he or she will be able to give you advice about your individual growth and development. * Names have been changed to protect user privacy. Back to Articles Related Articles Everything You Wanted to Know About Puberty Voice cracking? Clothes don't fit? Puberty can be a confusing time, but learning about it doesn't have to be. Read all about it. Read More Is It OK to Wear a Bra While Sleeping? Find out what the experts have to say. Read More Why Are My Breasts Different Sizes? It's quite common for girls to have different-sized breasts, especially as they develop during puberty. If you're worried about how your breasts are developing, check out this article. Read More Can I Make My Breasts Larger? Find out what the experts have to say. Read More When Will I Start Developing? Lots of girls and guys worry about when their bodies will develop. The fact is that physical development starts at different times and moves along at different rates in normal kids. Read More Note: All information is for educational purposes only. For specific medical advice, diagnoses, and treatment, consult your doctor. © 1995-2021 KidsHealth®. All rights reserved. Images provided by The Nemours Foundation, iStock, Getty Images, Veer, Shutterstock, and Clipart.com.