This article is from the Plastic and Reconstructive Surgery FAQ, by mooncrow@lava.net (Robert Green) with numerous contributions by others.
Breast augmentation (under the muscle layer) should not affect your
ability to breast feed. For sub-glandular augmentation (under the
breast tissue, but over the muscle layer), like any other surgery
which disturbs the breast tissue itself, there is a risk of losing
the ability to breast feed.
 
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