GUIDE
Teeth do not mean you have to stop breastfeeding. Biting is usually a brief phase with clear solutions.
The first time your baby bites during nursing is a shock. The good news: a properly latched baby physically cannot bite while actively nursing. Here is why biting happens, how to stop it, and how to navigate nursing strikes during teething.
Let us address the fear up front: the first time your baby bites you during breastfeeding, you will wonder if breastfeeding is over. It is not. Teeth and breastfeeding are entirely compatible, and the vast majority of biting is a brief, solvable phase — not a reason to wean.
Here is the reassuring physiology: when a baby is actively latched and nursing — sucking and swallowing — their tongue is forward, covering the lower gum and teeth. The nipple is drawn deep into the mouth, well past where the teeth sit. In this position, biting is physically impossible. The baby cannot bite and suck at the same time.
Biting happens in the transitions — at the end of a feed when the baby is no longer actively nursing, during the initial letdown when the flow surprises them, or when the baby is distracted and uses the breast as a convenient chew toy. Once you understand when and why biting occurs, you can prevent it.
| Strategy | How It Works | Effectiveness |
|---|---|---|
| Watch for the end of active feeding | Most biting happens when the baby has finished actively nursing and is using the breast as a teething toy. When you notice sucking has slowed, eyes are wandering, or your baby seems distracted, unlatch proactively before the bite. | High — prevents the majority of bites |
| Offer a teething toy before nursing | Let your baby chew on a cold teething ring for a few minutes before latching. This addresses the gum discomfort first, reducing the urge to bite during the feed. | Moderate to high |
| Use a firm 'no' and brief break | If bitten, say 'no' firmly (not yelling, not laughing), unlatch the baby, and take a 10-30 second break before offering the breast again. The baby learns that biting ends the feeding. | High — most babies learn within a few days |
| Press baby's face gently into the breast | If you feel the bite beginning, gently press the baby's face toward the breast. This instinctively causes them to open their mouth to breathe, releasing the bite. This is faster than pulling away (which can be more painful). | High for ending a bite in progress |
| Ensure a deep latch | A well-latched baby has the nipple deep in their mouth, past the teeth. In this position, the tongue covers the lower gum and teeth during active sucking, making biting physically difficult. If biting is frequent, evaluate and adjust the latch. | High — foundational prevention |
A nursing strike is when a baby who was previously breastfeeding well suddenly refuses to nurse. It is stressful, it feels like rejection, and during teething it is fairly common.
The mechanics make sense: if your baby's gums are swollen and tender, the sucking motion may cause discomfort. The baby learns to associate the breast with pain (even though the breast is not causing the pain — the gums are) and refuses to latch. This is temporary. Once the tooth breaks through and the gum pain subsides, most babies return to nursing without issue.
A nursing strike is NOT the same as self-weaning. True self-weaning is gradual and typically does not happen before 12 months. A nursing strike is sudden, has an identifiable trigger, and resolves within days to a couple of weeks. Knowing the difference prevents unnecessary early weaning.
During a strike, your priorities are: keep your baby fed (offer expressed milk by cup or bottle), protect your supply (pump at your usual feeding times), continue offering the breast without pressure, and address the underlying teething pain. Most strikes resolve within 2 to 5 days.
| Feature | Nursing Strike | Self-Weaning |
|---|---|---|
| Onset | Sudden — baby was nursing well and abruptly refuses | Gradual — baby slowly loses interest over weeks or months |
| Age | Can happen at any age during breastfeeding | Rarely happens before 12 months; more common after 18 months |
| Baby's behavior | Fussy, may cry when offered the breast, turns head away | Calm, simply prefers other foods and drinks, not distressed |
| Duration | Usually 2-5 days, sometimes up to 2 weeks | Permanent — baby has moved on |
| Cause | Often has an identifiable trigger (teething, illness, schedule change) | Developmental readiness — baby is getting nutrition elsewhere |
| Resolution | Baby returns to the breast once the trigger resolves | Baby does not return to regular nursing |
Beyond preventing bites and managing strikes, there are several practical adjustments that make breastfeeding during teething easier:
Offer a teething toy first. Before each nursing session, let your baby chew on a cold teething ring for a few minutes. This addresses the gum pain before latching, reducing the chance that your baby will use your nipple for counter-pressure.
Try different positions. If your usual nursing position causes discomfort (pressure on sore gums from a certain angle), try a different hold. Laid-back nursing, side-lying, and football hold each place different pressure on the jaw.
Give pain relief before feeds if needed. If teething pain is genuinely interfering with feeding, an appropriate dose of acetaminophen or ibuprofen 20-30 minutes before a nursing session can make the experience more comfortable for your baby.
Nurse in a quiet, distraction-free environment. A distracted baby is more likely to bite. During active teething, try nursing in a dim, quiet room where your baby can focus on eating rather than looking around and inadvertently clamping down.
Address nipple injury. If your baby has bitten you and you are dealing with nipple damage, use medical-grade lanolin, hydrogel pads, or expressed breast milk on the wound. If one side is too sore, nurse on the other side and pump the injured side until it heals.
When feeding patterns change during teething, it helps to have data showing what normal looks like. tinylog lets you track breastfeeding sessions so you can see exactly when feeds dropped off and when they returned to normal — and share that information with your lactation consultant if needed.
Teeth are not a reason to stop breastfeeding. The AAP recommends breastfeeding for at least 12 months, and the WHO recommends up to 2 years and beyond. Your baby will have teeth for most of this time. Breastfeeding with teeth is normal and expected.
Biting is behavioral, not inevitable. Not every baby bites, and those who do can be taught to stop. Consistent, calm correction works. Most biting phases last less than two weeks.
Watch for signs the baby is not getting enough during strikes. During a nursing strike, monitor wet diapers (at least 4-6 per day), weight gain, and overall alertness. If your baby is getting adequate nutrition from expressed milk or formula supplementation, a brief strike is not a medical concern.
A lactation consultant can help. If biting is persistent, the latch seems problematic, or you are struggling with a prolonged nursing strike, a board-certified lactation consultant (IBCLC) can provide hands-on guidance.
This is the single most reassuring fact about breastfeeding with teeth. When your baby is actively sucking and swallowing — drawing the nipple deep into their mouth with their tongue forward and covering the lower gum — biting is mechanically impossible. The bite happens when they stop actively nursing, when they are playing or distracted, or when the latch is shallow. This means the biting problem is solvable.
Most babies go through a brief biting phase when new teeth arrive — it lasts a few days to a couple of weeks, not months. They are experimenting, soothing their gums, or learning cause and effect (bite = exciting reaction from parent). With consistent gentle correction, the behavior stops. Many mothers breastfeed for months or years after the first teeth appear without ongoing biting issues.
During a teething-related nursing strike, try offering the breast when your baby is drowsy — just waking up from a nap or drifting off to sleep. Sleepy babies often nurse reflexively even when they refuse the breast when alert. This keeps the milk flowing and the baby fed while you wait out the strike.
If your baby is nursing significantly less during a teething episode or strike, pump to maintain your milk supply. Even a few days of reduced nursing can signal your body to make less milk. Express at the times your baby would normally feed, and offer the milk by cup or bottle. Your supply can recover once the baby returns to the breast.
This guide is for informational purposes only and is not a substitute for professional medical advice. If your baby has a fever of 100.4°F (38°C) or higher, is refusing to eat, or seems unusually unwell, contact your pediatrician — these symptoms are not typical of teething alone.
