It’s normal for one breast to be bigger than the other during puberty. As you grow, the breasts usually even out over time without needing any special treatment.
Why Does It Happen in some teens, one breast may develop more than the other. In others, the smaller breast might not grow as much. However, if by around age 16 (or near the end of puberty), your breasts are still noticeably different in size, they’ll likely stay that way. About one in four adult women have some degree of breast asymmetry.
· During puberty, there’s no urgent need to see a doctor just because your breasts are uneven. But if the difference persists at the end of puberty, seeking advice is a good idea. An endocrinologist (a hormone specialist) might be recommended.
Breastfeeding and Uneven Size:
- If you’re a mom with uneven breast size, don’t worry! The difference is usually due to fat layers, not the milk ducts.
- You can still breastfeed from both breasts as usual. The amount of milk produced should be similar from each breast.
Breast Cancer Risk:
- Uneven breast size doesn’t affect your risk of breast cancer. So, no need to stress about that.
- If you have any worries, chat with your doctor—they’re there to help!
Cosmetic Options:
- If you’re bothered by the appearance, there are treatments that can improve how your breasts look. These focus on cosmetic changes.
Breast reduction
- Surgery to reduce breast size is done as an operation under general anesthetic (where you are put to sleep) by a plastic surgeon.
- Breast reduction can affect milk production if breast tissue is removed. Nipple placement is also important to ensure future breastfeeding goes well. Discuss all risks and benefits carefully with a plastic surgeon.
Cosmetic Options:
External Prosthesis: Realistic and risk-free.
Breast Reduction or Implants: Plastic surgery options for cosmetic improvement.
Breast implant
What? Breast implants are a surgical procedure performed by a plastic surgeon.
How? They’re filled with saline (salt water), which is safe for the body.
Why Not Silicone? Silicone implants are no longer used due to concerns about potential leakage and immune system impact.
Breastfeeding? Breast enhancement doesn’t usually affect breastfeeding.
Important: Discuss risks and benefits with a plastic surgeon.
Key points to remember
- It is quite common for breast size to be unequal during puberty. If they are different sizes near the end of puberty, they are likely to stay unequal.
- There is no medical need for treatment for unequal breast size. Unequal breasts won't affect breastfeeding or increase breast cancer risk.
- An external breast prothesis looks and feels realistic and has no associated health risks.
- A breast reduction or breast implant are plastic surgery options that can improve cosmetic appearance.
For more information
- See your doctor, pediatrician or endocrinologist.
- Talk to a plastic surgeon to discuss treatment options.