Is My 4 Month Old Teething? Common Signs and What Actually Helps
4:17 a.m., the blue glow of my phone bleeds into the dark of the nursery, and I’m propped up against the baseboard holding my 4-month-old, Lila, who’s currently gumming my index finger hard enough to leave a faint crescent mark. Last night she slept 7 straight hours, ate two full bottles, and cooed at the spinning ceiling fan for 20 minutes while I folded laundry. Tonight? She won’t latch, won’t stay swaddled, won’t let me put her down, and every 10 minutes she lets out a little sharp cry that isn’t her hungry cry or her tired cry—something tight and uncomfortable. Like any other sleep-deprived parent, I type the words into Google that bring millions of parents to this search every day: is my 4 month old teething?
I went through this exact cycle with my first son, so I should know better. Back then, I was convinced he was teething at 10 weeks, bought every refrigerated teething toy on the market, and his first tooth didn’t break through until he was 10 months old. I felt silly for months, jumping at every drool stain and fussy spell. This time around, I know that early symptoms don’t always mean a tooth is popping through next week—but I also know that sore gums can show up long before you see any white spots under the skin.
I brought this up to Lila’s pediatrician at her 4-month checkup, just a week before this stretch of fussy nights started. She told me that between 3 and 5 months old, most babies start producing way more saliva than they used to, not just because teeth are moving. Their digestive systems are maturing, getting ready for solid food down the line, and extra saliva is just part of that. But even if the teeth aren’t ready to come through yet, they’re starting to shift and move under the gum line, and that pressure can ache. The extra drool can also irritate gums (and your baby’s chin, if you’re not wiping it constantly) so you end up with all the symptoms of teething months before a tooth actually shows up.
That lines up with everything I’ve seen with Lila the past week. She goes through three bibs a day, my shoulder is constantly damp from her leaning on me to chew, and anything that gets within an inch of her mouth ends up being gummed hard: her lovey’s ear, the tag on my sweatshirt, the edge of her play mat, my knuckle. She fusses halfway through feeds, pulling off the bottle every minute or two like sucking makes the ache worse, and her naps that used to be an hour and a half are now 20 minutes of fitful sleep before she wakes up crying.
The tricky part, of course, is telling teething apart from all the other stuff that happens at 4 months old. The 4-month sleep regression hits right around this time too, so it’s almost always a mix of both. Lila was already waking up more at night because her sleep cycles are changing, and adding sore gums on top of that makes it twice as hard for her to settle back down. I also panicked the first day I got a 99.3 degree temperature reading under her arm, and called the after-hours line convinced it was something worse. The nurse told me low-grade fevers under 100.4 are common with teething, but if it goes over that, or she’s pulling at her ear consistently and refusing to eat, that’s when you come in to rule out an ear infection. That’s a good rule of thumb I’ve held onto—don’t assume every fuss is just teething, but don’t panic over every little symptom either.
I’ve tried almost every trick out there the past week, and most of the fancy stuff didn’t work for us. Those expensive gel teething keys that are supposed to get cold in the fridge are too heavy and hard for Lila to hold on to, and she just pushes them away. The rubber teething rings I loved with my oldest are too big for her mouth right now. What has actually worked is so simple I didn’t even think of it at first: a clean cotton washcloth, wet down, twisted, and popped in the freezer for 10 minutes. I hold the cold end out to her, and she chews on it for 10 or 15 minutes at a time, the cold numbing the ache enough that she settles down. It’s free, I can throw it in the wash after, and there’s no weird plastic or chemicals to worry about. I also rub her gums gently with my clean, dry finger for a minute before feeds, and that takes enough of the edge off that she can eat without fussing.
When it’s really bad, like the 3 a.m. nights where she can’t settle no matter what I do, I give her infant Tylenol per the dosage on the bottle based on her weight. Lila’s pediatrician said it’s fine to use when baby is clearly uncomfortable and can’t sleep or eat, just don’t give it for every little fussy spell. I’ve only needed it twice so far, and it worked to take the edge off enough that we both got a few more hours of sleep. I never bothered with amber necklaces, anyway—our pediatrician warns they’re a choking hazard, so that was an easy skip.
It’s been 6 days of this now, and some days are better than others. Yesterday she napped for two full hours, chewed on her washcloth while my oldest built block towers next to her, and only woke up once overnight. Today she’s been fussy since 7 a.m., and I’ve already gone through four bibs. I still haven’t spotted a white tooth under her gums, and I don’t know if it will pop through next week or three months from now. I stopped prodding her gums every hour a couple days ago, because that just makes me more anxious, and it irritates her anyway.
Right now, I keep a stack of clean bibs by the couch, a washcloth waiting in the freezer, and extra coffee brewed for the inevitable early mornings. It’s messy, it’s tiring, and it’s not over yet. Some nights I still sit on the nursery floor typing questions into my phone, but now I just close the browser before I get sucked into the worst case scenarios. For now, a cold washcloth and an extra 10 minutes of snuggling is enough.
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