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Pacifiers and Breastfeeding: When to Introduce One, and How to Pick the Right Kind

You popped a pacifier in, and now you are second guessing everything. Maybe you are worried it will wreck your latch, tank your milk supply, or cause the “nipple confusion” your aunt keeps warning you about. Almost every new parent uses a pacifier at some point, and almost every one of them gets a pile of conflicting advice about it. As a speech-language pathologist and lactation consultant, I want to walk you through what the research actually says so you can make the call that fits your baby and your family.

Pacifiers and breastfeeding can absolutely coexist. For most healthy, full-term breastfed babies, it is usually best to wait until breastfeeding is well established and your baby has a consistent latch, often around 2 to 6 weeks, before introducing a pacifier. Pacifiers offer real benefits like soothing and a reduced risk of SIDS, and the biggest thing that protects your feeding is being intentional about when and how you use one.

Before you stress about a pacifier, make sure the latch underneath it feels good. My free latch workshop walks you through what a deep, comfortable latch looks like so you can spot a shallow one early.

Are pacifiers actually good for babies? The real benefits

Pacifiers get a bad reputation, but there are some genuinely good reasons parents reach for them. They are especially helpful for preterm infants. Much of the research on pacifier benefits comes from studies on preemies, where non-nutritive sucking has been linked to a shorter hospital stay, better bottle feeding skills, and a quicker transition from tube feeding to bottle feeding.¹ You may never need this, but it is a good example of how powerful early sucking practice can be.

Pacifiers also tap into your baby’s natural need to suck. Non-nutritive sucking is part of a newborn reflex that begins in utero. When something touches in or around your baby’s mouth, they instinctively open and suck, whether that is the breast, their hand, or a pacifier. This kind of sucking offers no calories, but it meets a real psychological need by helping your baby feel secure and practice self-soothing. It has even been shown to lower the pain response in babies going through uncomfortable procedures, and the AAP lists pacifiers as a key comfort tool for newborns.²,³

The benefit that gets the most attention is sleep safety. Since the 1990s, there has been strong, consistent evidence that using a pacifier during sleep lowers the risk of SIDS.⁴,⁵ Because it would be unethical to run experimental SIDS studies on babies, these studies cannot tell us exactly why the risk drops, only that it does. So the honest answer is that pacifier use reduces SIDS risk, and we are still not completely sure of the mechanism.

Because of that protective effect, the AAP recommends offering a pacifier at naps and bedtime.⁶ You do not need to force it, though. If your baby spits it out or wants nothing to do with it, that is okay, and pushing it is not necessary. Breastfeeding, especially exclusive breastfeeding, also greatly reduces SIDS risk.⁷ Either way, always put your baby to sleep in a safe sleep environment.

What are the risks of pacifiers?

Real talk: the risks are worth understanding, and most of them are about timing and duration rather than the pacifier itself.

Breastfeeding disruption is possible, but the evidence is genuinely mixed. Pacifiers have long been discouraged for nursing moms based on studies linking them to lower rates of exclusive breastfeeding.⁸,⁹ But other research suggests pacifier use may be a marker of existing feeding difficulty or lower motivation to breastfeed rather than the actual cause of early weaning.¹⁰ A large review found that in healthy, full-term, breastfed babies, using a pacifier from birth or after milk supply was established did not meaningfully change how long or how exclusively moms breastfed through four months.¹¹ The same authors noted we still do not have enough research on how pacifiers might affect feeding difficulties. So this one really does come down to your situation and your judgment.

Nipple confusion is possible but unlikely. Nipple confusion broadly means trouble feeding, or a preference for an artificial nipple, after exposure to a bottle or pacifier. Professionals are genuinely split on how much it happens or whether it exists at all, and a review of recent studies concluded that pacifier-related nipple confusion is unlikely.¹²

Ear infections become more likely with heavier use, especially after 6 months. Studies show ear infections are more common in babies who use pacifiers.¹³,¹⁴ We are not sure exactly why, though a common theory involves pressure changes in the middle ear during sucking. The risk seems to rise with how often and how long a baby uses the pacifier, which is why the AAP suggests cutting back after about 6 months of age. Exclusive breastfeeding has been shown to lower the risk of ear infections.¹⁵

Dental changes are a concern mainly with prolonged use. The American Academy of Pediatric Dentistry supports your decision to use a pacifier and even notes it can reduce thumb or finger sucking, which is a much harder habit to break. In their policy statement they add that “pacifier use beyond 18 months can influence the developing orofacial complex, leading to anterior open bite, posterior crossbite, and Class II malocclusion.”¹⁶ In plain terms, the longer and heavier the use, the higher the risk of dental issues down the road.

When to introduce a pacifier if you are breastfeeding

The right time depends on how you are feeding. If your baby is not feeding directly at the breast, you can introduce a pacifier whenever you would like. If you are breastfeeding, it is usually best to hold off until breastfeeding is well established and your baby has a consistently good latch, which for many families lands around 2 to 6 weeks.

Here is the why behind the wait. Frequent, on-demand nursing is what builds and protects your milk supply in those early days. A pacifier introduced too soon can mask feeding problems, or it can soothe a genuinely hungry baby and quietly displace calories they needed. One of the most common worries I hear is about missed feeding cues, and it is a fair one. A pacifier can calm a hungry baby, but usually only for a moment, so if your baby is showing hunger cues, offer a feed first. Waiting a few weeks gives you time to learn your baby’s cues, settle the latch, and let your supply regulate.

With that said, this is not a hard rule. A recent study comparing early versus late pacifier introduction found no difference in breastfeeding rates or problems between the two groups.¹⁷ In my own practice, I have seen pacifiers introduced early with no negative effect on breastfeeding, as long as parents are intentional about when and how they use them and have good breastfeeding support in place.

How to introduce a pacifier

Keep it baby-led. Offer the pacifier by gently touching it to your baby’s lips, then let them open their mouth and latch onto it. Avoid pushing it in without their active participation. If they are not interested, do not force it. Keep offering calmly, without pressure, and follow their cues.

If your baby is not taking it, you can try:

• Offering at different levels of alertness and different times of day, especially at night when they are drowsy.
• Dipping the pacifier tip in breast milk or formula to make it more appealing. (Skip sugar water or other liquids. Well-meaning friends and family still suggest it, but it is not a research-based practice.)
• Rocking, bouncing, or other gentle movement while you offer it.

How to choose the best pacifier for a breastfed baby

There is no single best brand, and honestly, do not let choosing one stress you out. Your goal is a pacifier that supports a healthy sucking pattern, which matters most for breastfed babies so you protect that latch at the breast.

When your baby nurses, the breast nipple stretches far back into their mouth, and the tongue cups and moves in a specific way. Here is a clinical point most guides skip. There is limited research directly connecting pacifier shape to breastfeeding latch, but we do know that repeated motor movements drive motor learning. The reasonable inference is that the sucking pattern your baby practices on a pacifier could carry over to the breast, and an off pattern could nudge them toward a shallower latch. That is the whole reason shape is worth a thought.

Pacifiers are usually sold as “conventional” or “orthodontic,” but there is huge variation brand to brand, and both categories can affect the palate depending on size and design.¹⁸ The label alone does not tell you much.

Here is where I land. I recommend avoiding bulb-shaped and orthodontic pacifiers for breastfed babies. A big bulb tip limits the tongue cupping and movement we want. Orthodontic shapes tend to flatten and push the tongue back rather than let it cup, and they are often short, which can lead a baby to chomp at the front of the mouth. Instead, look for a shape that mimics the breast during an active feed.

Not every pacifier is right for every baby, so choose for your specific child. Remember that the downsides we worry about, like ear infections and dental changes, track with how often and how long a pacifier is used, so do not get too caught up in finding the “perfect” one. If your baby uses a shape that does not check every box but is feeding well, keep doing what works. If you are running into feeding trouble while using a less-than-ideal shape, that is a good moment to try one with a more breast-like shape.

When and how to wean off the pacifier

This section is one the original draft did not include, and it is where a lot of the risk math actually gets decided, since dental and ear issues rise with prolonged use. Here is the general timeline I share with families:

• Wean to daytime-only use by around 6 months, which also lines up with reducing ear infection risk.
• Wean nighttime use by around 12 months.
• If your child is still using a pacifier past that, strongly consider weaning by 18 months to protect against dental changes according to the AAPD.

Pacifier safety tips

• Choose one-piece pacifiers, which are less likely to break apart and become a choking hazard.
• The AAP recommends a shield at least 1 ½ inches across so your baby cannot fit the whole pacifier in their mouth, made of firm plastic with ventilation holes.
• The U.S. Consumer Product Safety Commission prohibits straps, cords, or attachments that could be dangerous to infants.
• Inspect pacifiers regularly for wear or damage and replace them as needed.
• Wash and sterilize often, since bacteria and fungi can grow on pacifiers that are not properly cleaned.

Frequently asked questions

When should I introduce a pacifier to a breastfed baby?

For most healthy, full-term breastfed babies, it is usually best to wait until breastfeeding is well established and the latch is consistent, often around 2 to 6 weeks. If your baby is bottle feeding rather than nursing, you can introduce one whenever you like. Every baby is different, so watch your own feeding and cues.

Do pacifiers cause nipple confusion?

It is possible but unlikely. A review of recent studies found that pacifier-related nipple confusion is unlikely in healthy, full-term babies.¹² If you are seeing latch trouble, it is worth looking at the whole feeding picture rather than blaming the pacifier alone.

Can a newborn sleep with a pacifier?

Yes, and the AAP actually recommends offering a pacifier at naps and bedtime because it is linked to a lower risk of SIDS.⁶ If it falls out once your baby is asleep, you do not need to put it back in. Always pair it with a safe sleep environment.

What is the best pacifier for a breastfed baby?

There is no single best brand. Look for a shape that mimics the breast during an active feed, with a wide base, a gradual slope, and a round, narrow tip, and lean away from bulb-shaped or orthodontic styles that limit tongue cupping.

Do pacifiers cause ear infections?

Heavier and longer pacifier use is linked to more ear infections, especially after 6 months.¹³,¹⁴ The risk rises with frequency and duration, which is why cutting back after about 6 months is recommended.

When should you wean off a pacifier?

A common approach is daytime-only by around 6 months, nighttime use gone by around 12 months, and fully weaned by 18 months if use continues, mostly to protect dental development.

The Take-away

If you are staring at that little pacifier feeling unsure, I get it. There is so much noise around this topic, and most of it is louder than it is helpful. The truth is that pacifiers are a tool, and like any tool, timing and intention are what make them work for you instead of against you.

Learn your baby’s cues, give breastfeeding a strong start, pick a shape that supports a good latch, and keep an eye on the calendar as your baby grows. You have got everything you need to make a confident call here.

Happy feeding, friend.

References

1. Foster, Jann P., Kim Psaila, and Tiffany Patterson. “Non‐nutritive sucking for increasing physiologic stability and nutrition in preterm infants.” Cochrane Database of Systematic Reviews 10 (2016).
2. Carbajal, R., et al. “Randomised trial of analgesic effects of sucrose, glucose, and pacifiers in term neonates.” BMJ 319.7222 (1999): 1393-1397.
3. Mathai, Sheila, Nisha Natrajan, and N. R. Rajalakshmi. “A comparative study of non-pharmacological methods to reduce pain in neonates.” Indian Pediatrics 43.12 (2006): 1070.
4. Hauck, Fern R., Olanrewaju O. Omojokun, and Mir S. Siadaty. “Do pacifiers reduce the risk of sudden infant death syndrome? A meta-analysis.” Pediatrics 116.5 (2005): e716-e723.
5. Mitchell, E. A., Peter S. Blair, and Monique P. L’Hoir. “Should pacifiers be recommended to prevent sudden infant death syndrome?.” Pediatrics 117.5 (2006): 1755-1758.
6. Moon, Rachel Y. “How to Keep Your Sleeping Baby Safe: AAP Policy Explained.” HealthyChildren.org, American Academy of Pediatrics, 25 Oct. 2023, healthychildren.org.
7. Hauck, Fern R., et al. “Breastfeeding and reduced risk of sudden infant death syndrome: a meta-analysis.” Pediatrics 128.1 (2011): 103-110.
8. Buccini, Gabriela dos Santos, et al. “Pacifier use and interruption of exclusive breastfeeding: Systematic review and meta‐analysis.” Maternal & Child Nutrition 13.3 (2017): e12384.
9. Freitas, Camila Nobre de, et al. “Mechanical stress distribution over the palate by different pacifiers assessed by finite element analysis and clinical data.” Clinical Anatomy (2023).
10. Kramer, Michael S., et al. “Pacifier use, early weaning, and cry/fuss behavior: a randomized controlled trial.” JAMA 286.3 (2001): 322-326.
11. Jaafar, Sharifah Halimah, et al. “Effect of restricted pacifier use in breastfeeding term infants for increasing duration of breastfeeding.” Cochrane Database of Systematic Reviews 8 (2016).
12. Zimmerman, E., and K. Thompson. “Clarifying nipple confusion.” Journal of Perinatology 35.11 (2015): 895-899.
13. Salah, Mohamed, et al. “Recurrent acute otitis media in infants: analysis of risk factors.” International Journal of Pediatric Otorhinolaryngology 77.10 (2013): 1665-1669.
14. Warren, John J., et al. “Pacifier use and the occurrence of otitis media in the first year of life.” Pediatric Dentistry 23.2 (2001): 103-108.
15. Uhari, Matti, Kerttu Mäntysaari, and Marjo Niemelä. “Meta-analytic review of the risk factors for acute otitis media.” Clinical Infectious Diseases 22.6 (1996): 1079-1083.
16. American Academy of Pediatric Dentistry. “Policy on Pacifiers.” The Reference Manual of Pediatric Dentistry (2022): 77-80.
17. Hermanson, Åsa, and Lotta Lindh Åstrand. “The effects of early pacifier use on breastfeeding: A randomised controlled trial.” Women and Birth 33.5 (2020): e473-e482.
18. Tesini, David A., et al. “Functional comparison of pacifiers using finite element analysis.” BMC Oral Health 22.1 (2022): 49.