Quick Answer
It is completely normal for young babies to spit out a pacifier — especially in the first few weeks. Babies under 3 to 4 months do not yet have the muscle coordination or sucking reflex control to hold a pacifier in place reliably. With a little patience and the right technique, most babies learn to keep one in as their oral motor skills develop.
Why Babies Spit Out Pacifiers
- Immature oral motor skills: Keeping a pacifier in requires coordinated tongue and jaw movement. In the early weeks, babies are still developing this control and the pacifier simply falls out when their sucking rhythm pauses
- Wrong size or shape: A pacifier that is too large, too small, or the wrong shape for your baby's mouth will not stay in comfortably. Newborns need a newborn-sized pacifier — using a larger size makes it harder to maintain suction
- Not hungry or not in the mood: Babies will reject a pacifier if they are hungry (and want the real thing), overstimulated, or simply not in need of comfort sucking at that moment
- Introduced too early: In the very first days of life, the sucking reflex is strong but uncoordinated. Some babies need a few weeks before they can manage a pacifier consistently
- Preference for the breast or bottle: Some babies simply prefer the feel of the breast or bottle nipple and find a pacifier less satisfying
What to Try
- Use the right size: Always use a newborn-sized pacifier in the early weeks. As your baby grows, move up to the next size — a pacifier that is too small can also be hard to keep in
- Try a breast-shaped nipple: For breastfed babies, a pacifier with a nipple that mimics the shape and flexibility of the breast — like the Emulait Pacifier — can feel more familiar and be easier to accept and retain
- Use the "tug trick": Once the pacifier is in your baby's mouth, gently tug it as if you are about to remove it. This triggers the sucking reflex and encourages your baby to suck harder to keep it in
- Offer it at the right moment: Offer the pacifier when your baby is calm and drowsy — not when they are hungry or crying hard. A baby who is already distressed is less likely to accept and hold a pacifier
- Hold it in place briefly: Gently hold the pacifier in place with your finger for a few seconds while your baby establishes a sucking rhythm, then slowly release
- Try different shapes: Every baby is different. If one pacifier shape is consistently rejected, try another — some babies have strong preferences
- Be patient: Many babies do not reliably keep a pacifier in until 6 to 8 weeks, when their oral motor coordination improves
When It Is Fine to Let It Go
Not every baby takes to a pacifier — and that is completely fine. A pacifier is a tool, not a necessity. If your baby consistently rejects it despite trying different options and techniques, there is no need to persist. Many babies self-soothe in other ways, such as sucking on their hands.
When It's Worth Checking In With Your Pediatrician
Speak to your pediatrician if:
- Your baby seems unable to suck effectively on a pacifier, breast, or bottle — this could indicate a tongue tie or other oral motor issue worth assessing
- Your baby is not feeding well alongside rejecting the pacifier
- You have concerns about your baby's oral development or feeding
Key Takeaway
Babies spit out pacifiers because their oral motor skills are still developing — it is normal and temporary. Using the right size, trying the tug trick, and offering it at calm moments can all help. Most babies manage pacifiers more reliably from around 6 to 8 weeks. And if your baby simply does not take to one, that is perfectly fine too.
Parents Also Ask
When Should I Introduce a Pacifier to My Breastfed Baby?
Can Pacifiers Cause Nipple Confusion?
Which Pacifier Shape Is Best for Newborns?
This article is for informational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always consult your pediatrician or a qualified healthcare provider with questions about your baby's health.