If you feel lopsided or have trouble fitting into clothes due to a size mismatch of your breasts, then you may be a candidate for breast balancing procedures.
The surgery may involve adding breast volume to the small breast, either with an implant or your own tissue, and/or doing a breast reduction on the large breast. Often both breasts need surgery for adequate balancing and better final aesthetics. For example, if the small breast is being augmented in size, often the larger breast will be naturally droopier and may require a lift. If the breast volumes are similar but you have differences in the nipple areolar complexes, these may be corrected with minor surgery. The goal of the surgery will be to try to make the breasts as similar as possible in terms of breast size and shape. Though your breasts will never be exactly the same, the surgery will make them look very similar.
The exact approach that is best for you will be discussed with you prior to surgery, and often the final decision depends on the anatomy of both breasts and your desired final breast size.
Despite the common need for surgery on both breasts for overall better balancing and aesthetics, Medical Services Plan (MSP) often covers surgery on only one breast. Specifically, they will usually only cover either an augmentation to make the small breast bigger or a reduction to make the larger breast smaller. Thus, some women decide to pay privately for surgery on the other breast if needed.