Anisomastia is a medical condition in which there is a severe asymmetry or unequalness in the size of the breasts, generally related to a difference in volume.
[1] In other words, when one of the breasts is much larger than the other.
[2] In contrast to anisomastia, a slight asymmetry of the breasts is common.
[1] Anisomastia may be corrected by surgical breast augmentation or reduction.
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