One breast slightly larger than the other
I am 15 years old. About a year ago, I noticed my right breast was slightly larger than my left one. I didn't think much of it. However, in the past year the right breast has become a lot larger than the left. The nipple also seems to be large and abnormal. This worries me greatly. What is causing this and what can I do?
Breast growth in young women can be at a variable rate. Although initial breast growth (breast budding) is the first sign of puberty (avg. age 10.8 +- 1.1), completion of growth is often the last step in puberty (on average 4.5 +-2.04 after the initial breast development or 2.3 years +- 1.5 after onset of menses.
By these numbers you can gauge how many more years the breasts may continue to grow. The tables do not tell you, however, that it is very common for the breasts to grow at different rates and there can be large discrepancies during this growth period.
Eventually the slower growing breast catches up but many women will continue to have some inequality in size. The question becomes how much. Most often any remaining inequality is insignificant and is not noticeable by anyone other than the woman herself.
However, it is not uncommon to have a difference of as much as one cup size. Most plastic surgeons do not recommend any treatment unless there is at least a two cup size difference.
But because this may take care of itself, you need to wait at least until about 6 years after the onset of your menses before deciding to have any corrective action taken.
FORCE - Facing our risk for cancer empowered for women at high risk of breast/ovarian cancer due to strong family history or BRCA gene positivity
Differential Diagnosis of Breast Problems
Related Educational Articles
Should I Be Worried About Breast Cancer?
Breast Cyst Found on a Mammogram
Fibrocystic Breast Disease and the Perimenopause
Breast Asymmetry - When Does It Need Treatment?
Breast Cancer Risk in Young Women
Prolactin milk hormone and anovulation
Breast Cancer False Alarm Risk
Plant Estrogens and Breast Cancer
Related Web Sites
Breast cancer risk calculator