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Block feeding

You may have problems with leaking breasts and feel like you have an oversupply of breast milk. If so, you may want to try block feeding.

Wait until you have been breastfeeding for a while before trying block feeding. You can try this when your baby is around 6 weeks old.

Block feeding

You will use only one of your breasts for feeding for a set amount of time.

How to get started:

  1. Start with a 3-hour block of time.
  2. Any time when your baby is hungry during that block, nurse them on the same side.
  3. Switch to the other breast for the next 3-hour period.

Express just for comfort if the unused breast feels too full.

If you do not notice an improvement after doing this for several days, increase the number of hours in your block. You may find that they need to go up to 5 or 6 hours in a block.

If you have any difficulty, talk to a lactation consultant.

Expressing your breast milk

With block feeding, one breast remains full. If you feel pain or are uncomfortably full, try expressing the full breast a little for comfort. This will help to avoid any problems like blocked ducts or mastitis. A blocked duct is more likely if milk is not being removed fully enough.

Expressing breast milk

How block feeding helps oversupply

When the breast stays full for 3 to 6 hours, your body releases the opposite to milk making hormones (FIL hormones). They tell your body to slow down the milk production. Over a week or so doing this can calm down an overactive milk supply.

Getting support

Get help and advice about overactive breast milk supply from:

Page last reviewed: 20 August 2022
Next review due: 20 August 2025