If you’re around day 3 postpartum and your breasts suddenly feel full, firm, hot, or even painful, you’re not alone. This stage—often called “milk coming in”—can feel intense and, at times, overwhelming.
The good news? Much of what you’re experiencing is completely normal.
The tricky part? Understanding what’s actually happening in your body—and how to relieve it effectively.
We spoke with Clare Keys, for some advice and tips for new mums. Clare is a Registered and Endorsed Midwife and IBCLC; located on the Gold Coast, Clare is a mother of three and the visionary behind ‘The Womb Rooms’, an online trove of content designed to inform and support women through pregnancy, postpartum, and lactation, and with face-to-face postpartum and lactation services.
What is day 3 engorgement?
Day 3 engorgement happens when:
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Your milk transitions from colostrum to mature milk
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Blood flow increases significantly in the breast
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Lymphatic fluid builds as your body adapts to rapid change
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Your body is still learning how much milk your baby needs
This combination—milk, blood, and lymphatic fluid—is what creates that swollen, tight, uncomfortable feeling.
Your breasts may feel:
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Very full or swollen
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Firm or tight
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Warm or tender
In most cases, this is temporary—but the right support can make a significant difference to how comfortable (and confident) you feel.
“Clare, how do you explain day 3 engorgement to new mums, and how do you reassure them is normal?”
"I always explain to new mums that around days 2–3, babies often start cluster feeding. It’s really common to hear mothers say, “Surely they can’t still be hungry?” But the reality is, they absolutely can be. This is Mother Nature’s way of helping bring in your milk supply.
As your milk transitions, you’ll usually notice your breasts feeling fuller and heavier. Then sometimes, almost overnight, you wake up and it feels like someone has bolted a couple of bowling balls to your chest!
Engorgement can be very intense. Some women experience pain, swelling, fullness, and attachment challenges simply because the breasts are so full. The good news is that it does settle, and there are plenty of things we can do to help make this stage more comfortable and protect breastfeeding while everything regulates."
Why lymphatic drainage matters
One of the most overlooked pieces of engorgement is the role of the lymphatic system.
As milk production ramps up, the breast tissue can become congested not just with milk, but with inflammatory fluid and lymphatic build-up. This contributes to:
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Swelling and tightness
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Pain and tenderness
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Reduced milk flow
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Difficulty for baby to latch
Supporting lymphatic drainage is key. Gentle lymphatic drainage helps:
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Reduce swelling and pressure
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Improve milk flow and drainage
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Soften the breast for easier latch
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Lower the risk of complications like blocked ducts or mastitis
This is why approaches that go beyond “just removing milk” are so important during this phase.
Clare adds "Engorgement happens because the arrival of your milk is primarily hormonally driven, not demand driven. Because engorgement is partly an inflammatory process, management isn't just about removing milk. Feeding on demand and optimal attachment are important, but so is reducing swelling and supporting fluid movement within the breast. Cold packs between feeds, gentle lymphatic drainage massage, anti-inflammatory medications where appropriate, and avoiding excessive pumping can all help. If the breast is so firm that baby struggles to latch, reverse pressure softening or hand expressing a small amount of milk before feeds can make attachment much easier.
While engorgement can feel overwhelming, it is usually temporary. As the hormonal surge settles and your milk production becomes increasingly regulated by your baby's milk removal, the swelling and fullness generally improve over the following days."
What’s normal (even if it feels intense)?
During day 3–5, it’s common to experience:
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Full, heavy breasts
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Warmth and mild tenderness
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Tight, firm swelling (not just milk)
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Nipples flattening, making latch tricky
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Leaking milk
These symptoms usually improve within 24–48 hours as feeding becomes established and fluid begins to move more freely.
What’s not normal
It’s important to seek support if you experience:
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Severe or worsening pain
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Hard lumps that don’t soften after feeds
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Fever or flu-like symptoms
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Redness or heat in one area
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Baby unable to latch due to firmness
"Engorgement is common, it should also be temporary. If your pain is worsening, your baby is having difficulty attaching, you're noticing increasing redness or swelling, or you're developing flu-like symptoms, it's important to seek support early."
How to relieve day 3 engorgement
The goal is to reduce swelling, support lymphatic drainage, and encourage gentle milk flow.
1. Feed frequently
Aim for 8–12 feeds in 24 hours to help regulate supply and relieve pressure.
2. Support lymphatic drainage before feeds (and also between feeds)
Lymphatic drainage, particularly moving fluid towards the armpit and chest wall, can help reduce swelling and soften the breast.
Lactamo is designed for this. It protects against deep tissue massage (which can cause trauma) and allows comfortable movement and pressure, making lymphatic drainage easier to do effectively. You can follow our easy-to-follow animated instructions online for step-by-step guidance on technique for engorgement.
3. Aiding milk flow during a feed
You can use very gentle therapeutic massage towards your nipple at the start of a feed. This is aimed at aiding milk flow to reduce engorgement. Lactamo is also designed to easily facilitate this.
4. Use cooling after feeding
Cooling helps reduce inflammation, swelling, and discomfort. Again, you can use Lactamo for this.
Clare's approach focuses on "reducing inflammation and supporting physiological breastfeeding rather than aggressively trying to "empty" the breasts. Gentle anti-inflammatory management, effective milk removal, and protecting the breast tissue usually lead to a much more comfortable recovery and help prevent complications such as mastitis."
A smarter way to manage engorgement
One of the biggest challenges with engorgement is that it’s not just about milk—it’s also about inflammation, swelling, and lymphatic congestion.
That’s where a more targeted, multi-action approach can make a real difference.
Approaches that combine:
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Temperature (cooling where needed)
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Movement (gentle massage)
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Compression
can support both milk flow and lymphatic drainage at the same time.
This is also where tools like Lactamo can be helpful—designed to support gentle, effective lymphatic drainage while encouraging milk movement and relieving pressure.
Many mums find this especially useful during day 3–5, when breasts can feel firm, swollen, and difficult for baby to latch onto.
Why engorgement isn’t just “too much milk”
A common misconception is that engorgement is purely about oversupply.
In reality, it’s a combination of:
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Milk production
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Increased blood flow
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Lymphatic congestion
This is why simply expressing milk doesn’t always fully relieve symptoms.
Supporting lymphatic drainage—alongside feeding—is often the missing piece in helping breasts feel softer, more comfortable, and functional again.
When things start to improve
With consistent feeding and the right support:
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Swelling reduces as lymphatic fluid drains
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Breasts feel softer and more comfortable
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Baby latches more easily
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Your milk supply begins to regulate naturally
Most mums notice improvement within a few days.
Final thoughts
Day 3 engorgement can feel intense, but it’s also a sign that your body is doing exactly what it’s meant to do.
Understanding that this phase involves more than just milk—and that lymphatic drainage is key to relieving it—can completely change how you approach it.
With the right support, whether that’s guidance from a midwife or IBCLC, consistent feeding, or techniques and tools that help reduce swelling and improve flow, you can move through this phase with more comfort and confidence.
You don’t have to push through discomfort—there are smarter, more effective ways to support your body while it finds its rhythm.
"As an IBCLC I want you to know that engorgement is part of a normal process and is usually a sign that your body is doing exactly what it was designed to do. While it can be uncomfortable, painful, and sometimes a little overwhelming, it can be managed with the right support and information. Understanding why it's happening and managing it with an inflammation-focused, evidence-based approach can make a huge difference.
Be gentle with yourself and seek support early if things don't feel right. Most importantly, know that this phase is temporary."
