Small breast asymmetries are common and natural, but if your breasts are very asymmetrical, they may make you feel uncomfortable or self-conscious. This is true of both men, who may have uneven gynecomastia, and women, who can suffer from virginal hypertrophy--abnormal growth in one breast--and conditions that can lead to shrinkage in one breast, such as mastitis. For men, the condition is very hard to conceal, but women attempt to maintain the appearance of normal breasts by stuffing one of the cups of a bra or swimsuit, which can be difficult to keep up. Any situation in which your breasts may be seen--such as locker rooms, doctor visits, or intimate moments--can create stress and uncertainty. However, as troubling as breast asymmetry may be, it is also highly correctable.
Breast asymmetry can be corrected by liposuction of the gynecomastia for men. In women, breast reduction can be used on the larger breast, breast implants used on the smaller breast, or a combination of the two, depending on the size of breasts she wants to achieve following the operation. Other breast deformities, such as tuberous breasts, can be corrected at the same time.
It's important for women to know that breast asymmetry is considered a significant predictor of breast cancer, so if implants are used as part of the correction, they should be placed submuscularly to improve screenings.