Why Do Babies Bite While Breastfeeding?

Biting during breastfeeding is one of the most common — and most dreaded — nursing challenges. It usually happens for one of these reasons:

• Teething discomfort. Sore, swollen gums make babies want to bite down on anything, including you. This is by far the most common cause, especially between 4 and 12 months.
• A change in milk flow. A slower let-down or a distracted baby can cause frustration biting.
• Curiosity and experimentation. Babies explore the world with their mouths — sometimes that exploration happens mid-feed.
• Nasal congestion. A stuffy nose can make it hard for your baby to maintain a comfortable latch, leading to clamping down.

The good news: nursing bites are almost always a phase, and there are gentle, effective ways to stop them without damaging your nursing relationship.

3 Gentle Ways to Stop Breastfeeding Bites

1. Give Their Gums Something Better to Bite

If teething is the culprit — and it usually is — offer a clean, chilled silicone teether before and after feeds. This satisfies the urge to bite and soothes sore gums, so your baby is less likely to clamp down at the breast. Our 3-in-1 Clownfish Teether and Mimi Mushroom Teether are designed with soft, food-grade silicone that's firm enough to relieve gum pressure — but gentle on tender mouths. Pop one in the refrigerator (not the freezer) for 15–20 minutes before offering it.

2. Respond Calmly and End the Feed

When your baby bites, avoid yelping or pulling away suddenly — a sharp reaction can frighten your baby and actually make biting more likely (some babies find the reaction fascinating and repeat it!). Instead:

• Gently break the latch with your finger
• Say "no bite" in a calm, neutral voice
• Briefly end the session: "Milk time is over"
• Offer the breast again after a few minutes

Consistency is key. Most babies learn within a week that biting ends the feed.

3. Watch for the "Done" Cue

Many bites happen because the feed is already over — your baby is finished but hasn't unlatched yet. Learn your baby's "done" signals: slowing sucks, turning the head, releasing and re-latching, or fussing at the breast. End the feed proactively before the bite happens. Keeping your finger ready to break the latch at the first sign of a slowing suck can prevent most bites.

When to See a Lactation Consultant

If biting continues for more than two weeks, is accompanied by a poor latch, or causes nipple damage, a lactation consultant or pediatrician can help rule out tongue-tie, reflux, or other underlying issues. Nursing should not be painful — support is available.

Frequently Asked Questions

Why is my baby biting me while breastfeeding?

Most often it's teething-related — sore gums make babies want to bite down. It can also happen due to slow milk flow, distraction, or nasal congestion.

Does teething cause breastfeeding biting?

Yes. Teething is the #1 cause of nursing bites. Offering a chilled silicone teether like the Mombella Clownfish or Mimi Mushroom before feeds can significantly reduce biting.

Should I stop breastfeeding if my baby bites?

No — biting is a phase. Respond calmly, end the feed briefly, and offer a teether instead. Most babies stop within a week with consistent responses.

Can a teether help with breastfeeding bites?

Absolutely. Teethers satisfy the urge to bite and soothe swollen gums, taking the pressure off your breast. Look for BPA-free, food-grade silicone designs with no small parts.