A slight difference in breast size is common among women. However, in some women breast size discrepancy can be marked.

A woman’s breasts can be different not only in size but also in shape. The position of the nipple can also vary on each breast.

Breasts begin to grow at puberty and continue to grow for another two to four years afterwards. It is during this phase that a difference in size can become apparent. If breasts are uneven when women are 21 years of age it is unlikely that their size and shape will change or improve significantly after that time.

Most surgeons prefer not to perform corrective breast surgery on patients younger than 18 years of age. In any case, surgery within the first two years of the onset of menstruation is not recommended unless a significant difference in the size of the breasts is a source of emotional distress.

Surgery for breast asymmetry may require:
* the augmentation of one or both breasts
* reduction mammoplasty of one or both breasts
* augmentation of one breast and a reduction in size of the other

If there is sagging (ptosis) of one of the breasts, this issue can be corrected during surgery. A breast lift or mastopexy procedure will be used to raise the sagging breast.

Another breast anomaly akin to breast asymmetry is a condition known as tuberous breasts. Tuberous breasts are so named because the breasts are shaped like tubes. With tuberous breasts, the base of the breast is constricted so that the breast appears more like a tube than a cone. Tuberous breasts can also be corrected with cosmetic plastic surgery.