Your baby is teething, and suddenly they're turning away from the bottle or barely picking at dinner — and now you're worried about feeding on top of everything else. Take a breath. A short dip in appetite around a new tooth is normal and common, and it almost always rebounds within a day or two.
Here's what's going on: sore, swollen gums make sucking and chewing uncomfortable, so some babies eat a little less right when a tooth is breaking through. It's temporary, and there's plenty you can do to keep your baby fed and comfortable in the meantime.
What the science says
Real teething symptoms cluster in the few days around a tooth breaking through, per the American Academy of Pediatrics and the NHS: sore, swollen, tender gums, drooling, chewing, and irritability. It makes intuitive sense that those tender gums would briefly put a baby off feeding — the suction of breast or bottle, and the pressure of chewing solids, lands right on the spot that hurts.
So a short-lived appetite dip around a new tooth is expected, and not a reason to worry on its own. The key word is short-lived: it typically eases as soon as the tooth cuts through. Our full teething timeline and relief guide covers the broader picture of what teething does.
Just as important is what teething doesn't do. Teething does not cause a true fever, diarrhea, vomiting, or congestion — and it doesn't cause days-long feeding refusal. If reduced eating drags on or comes bundled with those symptoms, that points to an illness, not a tooth.
One reassurance from the feeding side: babies and toddlers are good at self-regulating intake over time, and appetite naturally varies day to day. The AAP notes that erratic, unpredictable appetites are normal — a big day, then a birdlike one. A single low-eating teething day evens out across the week, much like ordinary picky eating in toddlers.
What helps a teething baby keep eating
The trick is to soothe the gums before feeds and lean on cold, which numbs:
- Numb the gums first. A few minutes with a chilled (not frozen) teething ring, a cold washcloth, or a clean finger rubbed firmly on the gum can take the edge off enough to feed. Frozen-hard objects can bruise gums, so keep it cold, not frozen.
- Offer cold over warm. For babies on solids, cold soft foods — a bit of unsweetened yogurt, chilled well-mashed fruit — can be easier and more soothing than warm meals. Follow safe-feeding sizing and watch for choking.
- Prioritize fluids. Breast or bottle feeds matter more than solids right now. Offer them often, even in smaller amounts more frequently if a full feed is too much.
- Don't force it. Pressuring a baby to finish backfires; offer calmly and let them take what they'll take. The appetite comes back when the gum settles.
- For real pain, the right weight-based dose of acetaminophen (or ibuprofen over 6 months) can help — dose by weight, not age, and check our infant medication dosing guide or ask your pediatrician or pharmacist.
Skip the FDA-flagged products — benzocaine gels, homeopathic tablets, amber necklaces — none of which help feeding and some of which are genuinely risky.
When to call your pediatrician
A short appetite dip with teething usually just needs patience. But call your pediatrician if you notice:
- Feeding refusal that lasts more than a day or two, or a baby who won't take fluids.
- Signs of dehydration: far fewer wet diapers than usual, no tears when crying, a dry mouth. Wet diapers are your best gauge.
- A fever of 100.4°F (38°C) or higher — that's not teething, it's a real fever. In a baby under 3 months, a rectal temperature of 100.4°F or higher is a medical emergency — call your doctor or go to the ER immediately. See newborn fever: when to worry.
- Diarrhea, vomiting, congestion, or a rash, or a baby who seems genuinely unwell — signs of illness, not teeth.
- A longer-term drop in eating or any concern about weight gain, worth raising at a well-child visit.
Logging feeds and wet diapers in the TinyWins app makes it easy to see whether a teething day is a blip or a trend — and answers the "when did they last eat well?" question your pediatrician will ask.
The bottom line
A baby who eats a little less for a day or two around a new tooth is doing something normal — sore gums make feeding briefly uncomfortable, and the appetite bounces back once the tooth cuts through. Numb the gums with cold first, prioritize fluids, watch the wet diapers, and don't force it. If reduced eating lasts longer, comes with a fever or other illness signs, or shows up as fewer wet diapers, that's about more than teeth — and it's worth a call.
This article is educational and not medical advice. Always check with your pediatrician/provider.