The short answer to your question is yes. Any surgery to the breast can affect the ability to breast-feed. Specifically, when the breast tissue is moved around through a lift or a reduction, this can not only decrease the volume of the glandular tissue, as in a reduction, however, also, in a lift, this can disrupt the natural architecture of the glandular Breast tissue, and therefore impact breast-feeding. Fat grafting probably has the lowest risk of this, however, the combination of the two presents similar risks as stated above. Balance the timing of your surgery and plans for breast-feeding and have a goal directed conversation with your board-certified plastic surgeon. We are happy to help in any way we can.