Oh, and not to mention that the average breast size in America is 34DD , but is not necessarily the same in other countries. This article aims to explain exactly what determines your breast size, break down the average cup size and overall breast size around the world, and introduce you to the various bra styles that can make your bust look bigger or smaller. The teenage years are a delicate, confusing time for both boys and girls. Girls, however, are forced to face a number of body-image issues as they grow and change throughout their adolescent years. Many young women get caught up with obsessing over their looks, their weight, and their size.
You may have many changes in your breasts as a teen and young adult. Some changes are linked to your period. Others are linked to birth control pills, or to other hormonal forms of birth control. In some cases, changes may happen at any time for no clear reason.