Cabbage leaves are used on breasts to relieve engorgement, the painful swelling that happens when breasts become overly full of milk. Cold cabbage leaves placed inside a bra can reduce both pain and breast hardness, and they work at least as well as cold gel packs. They’re also sometimes used to help dry up milk supply during weaning.
Why Cabbage Leaves Work on Swollen Breasts
Cabbage leaves contain sulfur compounds with anti-inflammatory and antiseptic properties. They also contain enzymes like sinigrin that appear to contribute to reducing swelling. When chilled and applied to the skin, the leaves conform to the shape of the breast better than a rigid ice pack, providing even contact and consistent cooling across the tissue.
A randomized controlled trial compared cold cabbage leaves, cold gel packs, and no treatment in mothers with breast engorgement. Both cabbage leaves and gel packs significantly reduced pain within 30 minutes of the first application. But after a second application, cabbage leaves outperformed gel packs on both pain and breast hardness. Mothers in the cabbage leaf group also reported higher satisfaction with their care. A Cochrane review of engorgement treatments found that room-temperature cabbage leaves scored better than a hot water bag for pain relief, though the overall certainty of evidence was rated low.
The Academy of Breastfeeding Medicine acknowledges cabbage leaves as a soothing, inexpensive option that is unlikely to cause harm, though it notes the evidence isn’t conclusive enough to call them superior to all other treatments. Part of the challenge in studying engorgement is that symptoms often improve on their own over time, making it harder to isolate what’s doing the work.
How to Apply Cabbage Leaves
The process is simple. Start by coring a head of green cabbage and pulling off whole leaves. Rinse them under cool water, then place the leaves in a plastic bag in the refrigerator until they’re chilled. Once cold, tuck the leaves inside your bra so they cover as much of the breast as possible, cutting a small hole for the nipple if needed.
In clinical studies, mothers wore cold cabbage leaves for 30 minutes at a time, three times a day, for three consecutive days. That schedule produced significant drops in both pain (from about 4.9 to 2.9 on a 10-point scale) and engorgement severity (from 4.45 to 2.8). Replace the leaves when they wilt or warm up to body temperature, using a fresh chilled set for each session.
Using Cabbage Leaves During Weaning
If you’re trying to reduce or stop your milk supply, cabbage leaves fit into a broader strategy. Cold therapy generally helps slow milk production, while heat encourages flow. The recommended approach when weaning is: if your breasts feel painfully full, apply warmth first (a warm shower or compress), then pump just enough to relieve the pressure without fully emptying the breast. After that, apply cold cabbage leaves or a cold compress.
This cycle of minimal pumping followed by cold therapy gradually signals your body to produce less milk. Using cabbage leaves during weaning is about comfort management while your supply naturally decreases, not an instant off switch.
Green Versus Red Cabbage
Most guidance recommends green cabbage, and that’s what the majority of studies have used. However, there’s at least one published case report of red cabbage resolving recurrent mastitis (a breast infection) when standard treatments hadn’t worked. The researchers noted that there’s actually very little research comparing the two varieties head to head, and the preference for green cabbage seems to be based more on tradition than evidence. Red cabbage can stain skin and fabric, so if you try it, be aware of that trade-off.
Engorgement Versus Mastitis
Engorgement is swelling from milk buildup. Mastitis is an infection, usually marked by a red, hot, painful wedge-shaped area on the breast, often with fever and flu-like symptoms. Cabbage leaves are most commonly recommended for engorgement. For mastitis, antibiotics are the standard treatment, though the red cabbage case report suggests leaves may play a supporting role. If you have a fever along with breast pain, that points toward infection rather than simple engorgement.
Safety Considerations
Cabbage leaves are generally considered safe. The Academy of Breastfeeding Medicine describes them as “unlikely to be harmful.” Clinical trials using 30-minute applications three times daily for three days did not report adverse skin reactions. That said, if you have a known allergy to cruciferous vegetables (broccoli, cauliflower, Brussels sprouts belong to the same family), avoid applying them to your skin. Remove the leaves if you notice any irritation, rash, or increased redness.
If your goal is to continue breastfeeding, don’t leave cabbage leaves on for extended periods or use them more frequently than needed for comfort. While no study has shown that short-term use reduces milk supply in women who are actively nursing, the cold therapy principle behind them is the same one used to suppress lactation during weaning.