Nursing pads are absorbent liners that sit inside your bra to catch breast milk that leaks between feedings. If you’re pregnant or recently started breastfeeding, you’ve probably noticed (or will soon notice) that your breasts don’t always wait for your baby to be ready. Milk can let down when you hear a baby cry, when you’re nursing on one side and the other breast starts leaking, or even when you’re just thinking about your baby. Nursing pads keep your clothes dry, prevent skin irritation from lingering moisture, and give you one less thing to worry about when you’re out of the house.
Why Breasts Leak in the First Place
Your body releases milk through a reflex that isn’t entirely under your control. Hormones trigger what’s called the let-down reflex, and it doesn’t limit itself to the breast your baby is actively feeding from. The other side often leaks at the same time. Triggers can be surprisingly random: holding your baby, hearing any baby cry, seeing a photo of your child, or sometimes nothing at all. In the early weeks and months, leaking tends to be heavier and less predictable. For many people it tapers off over time, but some still need nursing pads seven or eight months into breastfeeding.
Disposable vs. Reusable Pads
Nursing pads come in two main categories, and each has trade-offs worth considering.
Disposable Pads
These are thin, single-use pads that typically have an adhesive strip to stay in place inside your bra. Popular brands use a soft mesh lining that won’t stick to your skin or leave lint behind if the pad dries out between changes. They’re convenient for travel and diaper bags since you can toss them after use. The cost adds up over months of breastfeeding, roughly 25 to 30 cents per pair, which sounds small until you’re going through multiple pairs a day for half a year or longer.
Reusable Pads
Washable pads are made from fabrics like bamboo, cotton, hemp, or wool. You throw them in with your regular laundry and reuse them indefinitely. Most parents who go this route keep about 20 pads in rotation, which covers the three to four pairs a day that heavy leakers typically need while always having clean ones available. The upfront cost is higher, but over several months of breastfeeding, reusable pads pay for themselves many times over. Bamboo is a popular choice because it absorbs up to 40% more liquid than cotton while still feeling thin and flexible against your skin. Wool pads are less common but can help if you deal with nipple pain from blood vessel spasms, since wool retains warmth. Cotton pads are the simplest option and feel familiar against skin, though they hold less milk before feeling damp.
Silicone Pads
A third option that doesn’t fit neatly into either category: silicone nursing pads (sometimes called milk collection pads) work by applying gentle pressure to the nipple to prevent leaking rather than absorbing it. They’re smooth, invisible under clothing, and reusable. They work best for light leakers and aren’t ideal for the early postpartum weeks when milk flow is heaviest.
Why Changing Them Matters
Nursing pads do more than protect your shirt. Keeping your nipples dry is directly tied to preventing infections. Fungal infections like thrush thrive in warm, damp environments, which is exactly what a wet nursing pad pressed against your skin creates. The Michigan Department of Health and Human Services recommends changing breast pads whenever they become damp and keeping nipples dry and uncovered when possible to reduce fungal growth risk.
In practice, this means changing pads every time you feed your baby in the early days, since that’s when leaking is heaviest. As your supply regulates, you can shift to changing them whenever they feel damp or stiff. There’s no fixed schedule that works for everyone. The guiding principle is simple: if the pad feels wet against your skin, swap it out.
Getting the Right Fit
Nursing pads come in a wider range of sizes than most people expect. Disposable pads are generally one-size-fits-most, roughly comparable to a 5-inch (12 cm) diameter. Reusable pads offer more variety:
- Extra-small (about 5 inches): fits A or B cups and is closest in size to disposable pads
- Small (about 6 inches): fits B through D cups and is the most commonly recommended size, offering full coverage while fitting inside most bras
- Medium (about 7 inches): designed for DD cups and larger
- Large or oval (7 to 9 inches): provides extra coverage for people who experience leaking toward the armpit area or deal with recurring plugged ducts on the outer breast
Oval-shaped pads follow the natural contour of your breast and bra more closely than round ones, which can make them less visible under fitted clothing. If discretion matters to you, a contoured pad in the right size will sit flatter than a round pad that bunches at the edges. Before ordering reusable pads, it’s worth measuring against your bra. The large and oval sizes are significantly bigger than most people anticipate.
How Long You’ll Need Them
Most people leak the most during the first few months of breastfeeding, when their body is still calibrating how much milk to produce. Going through three or four pairs of pads per day is normal during this phase. As your supply adjusts to your baby’s feeding schedule, leaking typically decreases. Some people stop needing pads entirely by four or five months. Others still rely on them well past the six-month mark, especially if they have an oversupply or their baby starts sleeping longer stretches at night. There’s no “normal” timeline for when leaking stops, so having pads on hand for as long as you’re breastfeeding is a reasonable plan.