Oversupply: When You’re Making More Milk Than Baby Needs

While low milk supply gets a lot of attention, too much milk — or oversupply — can also be challenging for breastfeeding parents. If your baby is gassy, fussy, or choking during feeds, and you’re feeling full and leaking constantly, you might be dealing with oversupply.

Let’s explore what oversupply is, how to recognize it, and what you can do to manage it.

What Is Oversupply?

Oversupply (also called hyperlactation) means your body is producing more milk than your baby needs. While this might sound like a good problem to have, it can lead to discomfort for you and feeding issues for your baby.

Signs of Oversupply

In you (the breastfeeding parent):

• Constant breast fullness or engorgement

• Forceful letdown (milk sprays or gushes)

• Frequent leaking

• Clogged ducts or recurring mastitis

In your baby:

• Choking, coughing, or pulling off at the breast

• Gassiness, reflux-like symptoms, or lots of spitting up

• Green, frothy, or explosive poops

• Gulping quickly, then fussing or acting uncomfortable

• Short feeds (because the milk flows so fast)

What Causes Oversupply?

Sometimes it happens naturally in the early weeks as your body figures out how much milk to make. Other times, it’s triggered by:

• Frequent pumping in addition to nursing

• Switching breasts too often (offering both sides every feed when baby doesn’t need it)

• Oversimulation (especially if using pumping as a way to increase supply without a clear need)

How to Manage Oversupply

1. Feed from one breast per session

This helps your body regulate and reduces the force of letdown. If you’re very full on the unused side, hand express just enough for comfort — not to empty.

2. Try laid-back nursing

Let gravity help! Nursing in a reclined position slows the flow, giving baby more control.

3. Avoid extra pumping

Unless advised by your provider, pumping too much can worsen oversupply. If you’re donating milk or need to build a stash, work with a lactation consultant to create a plan that protects your supply and comfort.

4. Use gentle block feeding

In some cases, feeding from the same breast for a few feeds in a row can signal your body to slow down production. This should be done with guidance to avoid plugged ducts.

5. Get support

Oversupply is manageable, but it can be stressful — especially when your baby seems uncomfortable or fussy. A lactation consultant can help you find the right balance without compromising your milk supply.

You’re Not Alone

Oversupply can be exhausting, both physically and emotionally. But with time, your body usually adjusts — and support can make a big difference. Your baby will find their rhythm, and so will you!