Supporting Breastfeeding

La Leche League Canada

Breastfeeding on One Side Only

on February 22, 2016

Most people assume that you need to have two functional breasts to breastfeed a baby but there are women who, for a variety of reasons, nurse their babies, on one side only. The first concern people bring up is whether the baby will get enough milk. When you consider that mothers of twins (and more) can successfully breastfeed, it is clear that each breast will produce the amount of milk needed given the right stimulation.

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The most common reason for mothers to find themselves breastfeeding from one side only is past surgery for cancer or to remove a benign lump. If the ductal tissue of the breast has been removed or severely damaged, the breast may not produce milk or the milk may not reach the nipple. Other mothers have found themselves nursing on one side because of physical issues of their own or the baby’s, or they have a baby whose adamant refusal to feed from one breast can’t be overcome.

Producing an adequate milk supply when breastfeeding on one side only requires the same things as stimulating a milk supply in both breasts: putting baby to the breast early and often and ensuring that baby has a good latch. The breast that is not stimulated will, over time, stop producing milk.


If you are surprised that breastfeeding is possible with only one functional breast you may be even more surprised to know that mothers have breastfed twins or tandem nursed a newborn and a toddler with only one breast. With knowledge, support and determination breastfeeding mothers can do amazing things!


If you need more information or have a breastfeeding problem or concern, you are strongly encouraged to talk directly to an accredited La Leche League Leader. In Canada, Leaders can be located by clicking or Internationally


If you have found this article helpful, La Leche League Canada would appreciate your support in the form of a donation at so we can continue to help others breastfeed. Thank you!


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