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What causes a low milk supply during breast-feeding?

30 Apr 2016


Various factors can cause a low milk supply during breast-feeding, such as waiting too long to start breast-feeding, not breast-feeding often enough, supplementing breastfeeding, an ineffective latch and use of certain medications. Sometimes previous breast surgery affects milk production. Factors such as premature birth, maternal obesity, pregnancy-induced high blood pressure and poorly controlled insulin-dependent diabetes can also affect milk production.

Although many women worry about low milk supply, insufficient breast milk production is rare. In fact, most women make one-third more breast milk than their babies typically drink.

To boost milk production:

•  Breast-feed as soon as possible. Waiting too long to start breast-feeding can contribute to a low milk supply. Hold your baby skin to skin right after birth and your baby will likely breast-feed within the first hour after delivery.

•  Breast-feed often. For the first few weeks, breast-feed eight to 12 times a day — about every two to three hours. Breast-feeding less often can contribute to a low milk supply.

•  Check your latch. Make sure your baby is latched on and positioned well. Look for signs that your baby is swallowing.

•  Be alert to feeding problems. It's OK for your baby to nurse on only one breast at a feeding occasionally — but if this happens regularly, your milk supply will decrease. Offer both breasts at each feeding. You might need to pump the other breast to relieve pressure and protect your milk supply until your baby begins taking more at each feeding.

•  Don't skip breast-feeding sessions. Pump your breasts each time you miss a breast-feeding session to help protect your milk supply.

•  Hold off on the pacifier. If you choose to give your baby a pacifier, consider waiting until three or four weeks after birth. This will give you time to settle into a regular nursing routine and establish your milk supply.

•  Avoid alcohol and nicotine. Drinking moderate to heavy amounts of alcohol can decrease milk production. Smoking can have the same effect.
Maintaining your milk supply during breast-feeding is important for your baby's health and growth. If you're concerned about your milk supply or your baby's feedings, talk to your doctor.


Elizabeth LaFleur, R.N. (2015). Infant and toddle health, What causes a low milk supply during breast-feeding? Mayo Clinic [Online]. Available: [September 22, 2015]

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