Why are my breasts different sizes? Is there anything I can do about it? It is normal to have different sized breasts. Many girls and women do. If you have just started developing breasts, one breast may grow more quickly than the other. This difference in breast size may even out. But it's also perfectly normal for breasts to be different sizes even when they're fully developed. If the size difference between your breasts bothers you, you can wear an extra-supportive bra or put a special insert in your bra (on the side where the breast is smaller). This will make your breasts look more equal in size. A bra salesperson can help with ideas for evening things out. Don't be embarrassed — rest assured, they've helped others with the same concern! If you're still uncomfortable about your breast size, talk to your doctor or gynecologist. He or she can reassure you that your breasts are normal and talk to you about your options. The only way to permanently change the shape of the breasts is through plastic surgery. Most doctors recommend that a girl wait until her breasts are done growing (about age 20) before considering plastic surgery. Back to Articles Related Articles Why Are My Breasts Sore? Breast soreness is common among teens, but it can still seem worrying when it happens to you. Fortunately, breast pain is rarely serious. Find out why your breasts may hurt and what you can do about it. Read More Can I Make My Breasts Larger? Find out what the experts have to say. Read More Body Image and Self-Esteem When your body changes, so can your image of yourself. Find out how your body image affects your self-esteem and what you can do. Read More 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 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.