The speed of mastitis is often what mums remember most. One moment there is tenderness and warmth on one side, and within hours, there can be fever, chills, and a deep aching that makes even rest feel difficult.
The fear when it strikes is usually that breastfeeding will have to stop. For most mums, it does not. With a prompt response, the majority of mums who go through it can continue feeding or return to breastfeeding once they have recovered.
This post covers what mastitis is, how to recognise the symptoms, what to do if you think you have it, and how to lower the risk of it recurring.
What Is Mastitis?
Mastitis is inflammation of the breast tissue, and it most often develops from a blocked milk duct that has not cleared. When milk builds up in one area and cannot drain properly, the surrounding tissue becomes inflamed, and in some cases, that inflammation can progress into infection.
Some mums are more likely to encounter it than others. An incomplete latch that consistently leaves part of the breast undrained, long gaps between feeds, and persistent oversupply are among the more common contributing factors. Sustained pressure on one area, from a tight bra or repeatedly feeding in the same position, can also restrict flow over time.
Understanding what tends to cause it can also help explain why mastitis sometimes recurs in the same spot, even after the first episode has fully resolved.
Common Signs and Symptoms
The difficulty with mastitis symptoms is that they can feel like several things happening at once. A tender breast, a general unwellness, a fever that makes you wonder if you have caught something else entirely. When they arrive together and quickly, it can feel alarming, particularly if you are already running on very little sleep.
The most visible sign is usually a red, swollen, warm, or painful area on the breast, often wedge-shaped and concentrated in one section. There may also be a hard lump or area of tenderness that does not ease after a feed or an expressing session, which can indicate a blocked milk duct that has not fully cleared.
Flu-like symptoms, including fever, chills, and body aches, often accompany the breast discomfort and sometimes appear before any physical changes to the breast become obvious. If you are suddenly feeling very unwell alongside any breast tenderness, it is worth contacting a healthcare professional that same day rather than waiting to see how things develop. The earlier mastitis is identified, the more straightforward it tends to be to treat.
What to Do If You Think You Have Mastitis
The instinct when breastfeeding becomes painful is often to pull back from the affected side, but with mastitis, keeping the breast draining is one of the most important things you can do. Here is what tends to help most in the early stages.
- Continue feeding from the affected side, and follow your baby's cues rather than trying to drain the breast completely. Overpumping can push your body toward oversupply, which may worsen the inflammation rather than ease it. A small amount of expressing after a feed for comfort is fine while things settle.
- Before latching, try a little gentle hand expression and soft circular massage to get milk moving. Deep or firm pressure on the breast is worth avoiding, as it can aggravate the surrounding tissue rather than relieve the blockage.
- Use a cool compress in between feeds rather than after them. This tends to be more effective at reducing swelling and easing localised pain.
- Keep your fluid intake up and get as much rest as you can manage. If you develop a fever, speak to your doctor or pharmacist about suitable medication.
- For pain and inflammation, anti-inflammatory options such as ibuprofen can help. Check with your doctor or pharmacist about what is appropriate to take while breastfeeding.
- If blockages are a recurring issue, ask your doctor about sunflower or soy lecithin supplements, which some mums find helpful for reducing inflammation in the ducts.
- If symptoms are not improving within 24 hours, or you are feeling very unwell, see a doctor without waiting it out.
On days when feeding directly feels too painful, using a milk pump can help you keep the breast drained without the added discomfort of a direct latch. Hegen's breast pumps express directly into milk storage bottles, so storing breast milk and feeding it later requires fewer transfers and minimal extra handling. When you are already managing pain and exhaustion, a setup that removes a few steps from the process can make a real difference.
How to Lower the Risk of Mastitis
If you have already been through mastitis once, the desire not to go through it again is completely understandable. While there is no way to eliminate the risk, the most practical tips for mastitis prevention tend to share the same starting point: keeping the breast consistently and fully drained.
- Feed or express regularly and keep gaps between sessions manageable. Milk that sits in the breast for too long is more likely to cause a blockage.
- Check whether your baby is fully draining the breast during feeds. If you suspect they are not, a lactation consultant can help you assess the latch. A small adjustment can sometimes make a significant difference, particularly if mastitis has returned to the same spot more than once.
- Vary your feeding position from session to session. Different positions tend to draw milk from different areas of the breast, which helps ensure that no single section is consistently left undrained.
- Look at whether anything in your daily routine is applying sustained pressure to one spot, whether that is a tight bra, a firm feeding cushion, or a bag strap worn regularly on the same shoulder. Small adjustments made consistently can reduce both the likelihood and severity of future episodes.
Getting Through Mastitis
Mastitis is painful, and it is completely understandable to feel frightened when it comes on so fast. But it is manageable, and for most mums it does not mean the end of breastfeeding. With consistent draining, rest, and prompt care when symptoms are not easing, the majority of mums come through it.
The most useful thing you can do is act early. If you notice the signs, start responding that day. If things are not improving within 24 hours, or you are feeling very unwell, see a doctor rather than waiting it out on your own.
For mums who want support through the breastfeeding period, Hegen's range of breast pumps and feeding solutions is designed to make comfortable, consistent expressing more manageable.
