Nipple shields are typically recommended when a baby can’t latch onto the breast effectively within the first few days after birth, or when breastfeeding is painful enough to threaten whether you continue at all. They’re a thin, flexible silicone cover that fits over your nipple and areola, giving your baby a firmer surface to latch onto. While they’re not meant as a first-line solution for every breastfeeding challenge, they can be the difference between breastfeeding and not breastfeeding in several specific situations.
Latch Difficulties in the First Days
The most common reason health professionals recommend a nipple shield is a baby who simply can’t latch. In studies of nipple shield users, difficulty with latch accounts for 62 to 73% of all cases. This includes babies who can’t grasp the areola, who repeatedly slip off the breast, or who refuse the breast entirely. Breast refusal alone accounts for about 69% of cases seen at lactation consultations where shields are eventually introduced.
Health professionals typically recommend a shield after the baby has struggled to latch for an average of five days. That waiting period matters: many newborns need time and positioning adjustments before latching clicks. A shield introduced too early can become a crutch for a problem that would have resolved with hands-on lactation support. But after several days of failed attempts, a shield can prevent the cycle of frustration, hunger, and formula supplementation that sometimes ends breastfeeding altogether.
Flat or Inverted Nipples
Flat or inverted nipples are the single most-cited anatomical reason for nipple shield use, reported by 62% of mothers in one large study. The shield creates a protruding shape that a baby can draw into their mouth more easily. It essentially does the work that a more prominent nipple would do naturally, giving the baby something to latch onto and compress against the roof of their mouth.
There’s an important caveat here. Mothers who use shields specifically for flat or inverted nipples are significantly more likely to stop breastfeeding before six weeks compared to mothers using shields for other reasons. That doesn’t mean shields don’t help with flat nipples. It means this particular challenge often needs more support beyond the shield itself, like working with a lactation consultant on positioning, breast shaping techniques, or a plan for weaning off the shield as the baby’s mouth grows and your nipple tissue becomes more pliable with regular feeding.
Premature Babies
Premature infants face a unique set of feeding challenges. They often have weak suction pressure, short and ineffective sucking bursts, and a tendency to fall asleep almost immediately after being positioned at the breast. In studies, about 29% of nipple shield use involved babies who fell asleep too quickly to feed, and 43% involved a disorganized suck pattern.
The rigid tip of a silicone shield compensates for weak mouth suction by holding its shape inside the baby’s mouth, requiring less effort from the infant. Lactation professionals most commonly recommend shields for premature babies born before 35 weeks, as these infants often lack the oral muscle coordination for direct breastfeeding. The average gestational age at first shield use in research is about 35 weeks. As premature babies mature and develop stronger feeding reflexes, most can transition to the bare breast.
Nipple Pain and Damage
Sore, cracked, or damaged nipples account for roughly 23 to 24% of nipple shield use. The shield creates a barrier between your wounded skin and your baby’s mouth, reducing friction and allowing tissue to heal while you continue breastfeeding. This can be especially valuable in the early postpartum days when nipple trauma might otherwise push you toward pumping or formula out of sheer pain.
Keep in mind that nipple pain is usually a symptom of something else, most often a shallow latch. A shield can provide relief while you work on the underlying problem, but using one indefinitely without addressing the latch means the pain will likely return once you stop.
Transitioning From Bottle to Breast
Babies who have spent time bottle-feeding, whether due to NICU stays, supplementation, or other circumstances, sometimes refuse the breast because it feels and functions differently from a bottle nipple. A nipple shield mimics the firmer feel of a bottle, making the breast more familiar. Lactation professionals recommend shields for this purpose as a bridge, gradually helping the baby accept the breast before eventually removing the shield.
Getting the Right Size
Nipple shields come in multiple sizes, and fit is based on your nipple diameter, not your areola. Common sizes range from about 15 mm to 24 mm across the base. The correct fit leaves roughly 2 mm of space between your nipple and the sides and top of the silicone cone. If the shield is too small, it will compress and irritate your nipple. Too large, and your baby won’t get a good seal, which reduces milk transfer.
To check fit, place the shield over your nipple and look for it to sit centered with a small gap around the nipple on all sides. If you’re unsure, a lactation consultant can measure you and recommend the right size.
How to Apply a Nipple Shield
Correct placement makes a significant difference. A poorly applied shield can block milk flow or slide during feeding. The inside-out technique works best: place your thumbs on the base of the shield and flip it about halfway inside out, leaving a small dimple at the tip. Then press the dimple over your nipple and roll the base back flat against your breast. This creates gentle suction that draws your nipple into the cone and keeps the shield in place. Running the shield under warm water before applying can soften the silicone and help it conform to your skin.
Your baby should latch onto the shield with a wide mouth, taking in not just the tip but as much of the shield base as possible, similar to how they’d latch onto the breast itself. You should see jaw movement and hear swallowing during the feed.
Keeping Shields Clean
Nipple shields need to be washed after every feeding with hot, soapy water using a dedicated brush, then rinsed and air-dried on a clean surface. Don’t reuse a shield between feedings without washing it first.
If your baby is under two months old, was born prematurely, or has a weakened immune system, you should also sanitize the shield at least once daily. You can boil it for five minutes, use a steam sanitizer, or soak it for at least two minutes in a solution of two teaspoons of unscented bleach per gallon of water.
Weaning Off a Nipple Shield
Most lactation professionals view nipple shields as a temporary tool. Signs your baby may be ready to try the bare breast include stronger, more rhythmic sucking, longer feeding sessions, and a growing ability to stay awake and engaged through a full feed. Premature babies often show readiness as they approach or pass their original due date.
A common weaning strategy is to start feeding with the shield, then remove it mid-feed once your baby is calm and actively sucking. Some mothers try offering the breast without the shield at the start of a feed when the baby is hungry but not yet frantic, since a very hungry baby may accept whatever is offered. Others cut back gradually, dropping the shield for one feed per day and increasing from there. If your baby resists, it’s fine to put the shield back on and try again in a few days. Forcing the transition tends to create breast aversion, which is harder to fix than shield dependence.
There’s no universal timeline. Some babies transition within a week or two, while others use a shield for months. What matters is that your baby is feeding well, gaining weight, and that you’re comfortable. A lactation consultant can help you develop a weaning plan tailored to your specific situation.