When Do Babies Start Teething? Signs, Timeline and Soothing

The bib is soaked by 9 a.m. Again. Your five-month-old has spent the morning gnawing on her fist, the burp cloth, the strap of the car seat, and — briefly, triumphantly — your knuckle. Somewhere between the third outfit change and the fourth round of chewing, the question surfaces: is this it? Is a tooth actually coming?

Maybe. Or maybe not for months. Teething is one of those milestones that parents watch for with a mix of pride and dread, and it comes wrapped in more folklore than almost any other stage of infancy. Fevers get blamed on it. Sleepless weeks get blamed on it. Entire product aisles exist because of it.

The real story is calmer and more useful. There’s a fairly predictable schedule, a short list of genuine signs, a handful of soothing tricks that hold up to scrutiny — and a few popular remedies worth leaving on the shelf.

When do babies start teething?

Six months is the classic answer, and for most babies it’s close to the truth. According to Mayo Clinic and the NHS, the first tooth typically breaks through around the 6-month mark, and it’s almost always one of the two bottom front teeth — the lower central incisors.

But “typical” hides a wide range. Some babies sprout a tooth at 4 months; others show nothing but gums until their first birthday. Both patterns are usually normal. The single biggest factor is genetics: if you or your partner teethed early or late, your baby is likely to follow suit. Babies born prematurely often teethe a bit later, counted from their birth date, because their developmental clock started early.

Here’s a detail that surprises many parents: teething actually begins long before you see anything. Tooth buds form in the gums during pregnancy, and in the weeks before eruption, the tooth migrates upward through bone and gum tissue. That slow journey — not the dramatic moment of breakthrough — is what causes most of the gnawing and drooling you’ll notice. So a baby can be genuinely “teething” for weeks with no white speck in sight.

One practical anchor to hold onto: the timing of the first tooth says nothing about your baby’s health, intelligence, or nutrition. A 4-month teether and a 12-month teether end up in exactly the same place — a full set of 20 baby teeth, usually by around age 3.

What are the first signs of teething?

The earliest clue is usually behavioral, not visible. Days or weeks before a tooth appears, most babies start working their gums against anything in reach. Watch for this cluster of signs, which Mayo Clinic, the NHS, and Cleveland Clinic consistently list:

• Drooling — often dramatic, sometimes enough to soak two or three bibs a day and cause a red chin rash.
• Chewing and gnawing — fists, toys, spoons, your fingers. The counter-pressure genuinely relieves gum discomfort.
• Swollen, tender gums — you may see a puffy ridge or a faint bluish bump where a tooth is close to the surface.
• Fussiness and irritability — usually mild and intermittent, worse in the day or two before a tooth erupts.
• Ear-pulling or cheek-rubbing — gum pain can refer along shared nerve pathways, so babies sometimes tug the ear on the sore side.
• Slightly flushed cheek — often just on the side where the tooth is coming.
• A dip in appetite for sucking — nursing or bottle-feeding can press on sore gums, so some babies feed in shorter, crankier bursts.

The most reliable confirmation is the simplest: run a clean finger along the gum line. A tooth about to erupt feels like a hard grain of rice under the surface. And notice what’s not on this list — high fever, diarrhea, and vomiting. Those point elsewhere, which matters enough to get its own section below.

Can a 2- or 3-month-old be teething?

Usually not — but the confusion is completely understandable, because babies this age put on a convincing performance. Around 2 to 3 months, two developmental changes arrive at once: salivary glands ramp up production, and babies discover their hands. The result is a drooling, fist-chewing infant who looks exactly like the teething babies in every parenting article. Cleveland Clinic and the NHS both note that this stage is routinely mistaken for teething.

The tell is what happens next. In a 3-month-old, the drool and chewing typically continue for months with no tooth appearing, because most of that mouthing is how babies explore the world and self-soothe — not a response to gum pain. True eruption before 4 months is uncommon, though not impossible. A small number of babies do cut a first tooth at 3 months, and it runs in families.

Then there are the genuine outliers. Roughly 1 in every 2,000 to 3,000 babies is born with a tooth already in place — called a natal tooth — or erupts one in the first month, called a neonatal tooth. These are usually lower front teeth and are often loose because the root hasn’t fully formed. If your newborn has one, your pediatrician will check whether it’s stable; a very wobbly natal tooth is sometimes removed because of the choking risk, and a sharp edge can interfere with feeding.

So if your 2-month-old is a drool machine, the odds strongly favor normal development, not teeth. Feel the gums: if there’s no hard bump under the surface, you’re probably months away.

Baby tooth eruption chart: which teeth come in when

Baby teeth arrive in a fairly predictable sequence — bottom before top for the front teeth, front of the mouth before the back — and they tend to come in pairs, left and right together. The ranges below reflect standard eruption timelines used by MedlinePlus and pediatric dental references. Treat them as averages, not deadlines; a healthy baby can run months ahead or behind every line on this chart.

Teeth	Lower jaw	Upper jaw
Central incisors (front middle)	6–10 months	8–12 months
Lateral incisors (next to middle)	10–16 months	9–13 months
First molars (back grinding teeth)	14–18 months	13–19 months
Canines (pointed “eye teeth”)	17–23 months	16–22 months
Second molars (very back)	23–31 months	25–33 months

A few patterns worth knowing. The canines break the front-to-back rule — they erupt after the first molars, filling the gap between the incisors and molars, which is why toddlers briefly sport a gap-toothed grin. The full set of 20 typically lands by the third birthday. And a rough rule of thumb pediatric dentists use: by about 12 months, most babies have somewhere between 2 and 8 teeth, but the spread around that average is enormous and rarely means anything is wrong.

What are the worst months for teething?

Ask experienced parents and most will point to the same window: roughly 12 to 24 months, when the first molars and canines arrive. There’s a logical reason. Molars are broad, flat teeth with a much larger surface area pushing through the gum than the thin, sharp incisors that came first. First molars typically erupt between 13 and 19 months; canines follow between 16 and 23 months. Second molars, arriving between about 23 and 33 months, are the biggest of all — though by then, many toddlers can at least point to what hurts, which makes the whole episode easier to manage.

Timing compounds the problem. During the molar phase, several teeth often move at once — it’s not unusual for a toddler to have three or four teeth in various stages of eruption simultaneously. Compare that with the gentler opening act: the two bottom incisors, small and narrow, often slip through with surprisingly little fuss. Plenty of parents discover the first tooth by accident, hearing it clink against a spoon.

That said, “worst” is individual. Some babies sail through molars and melt down over incisors; a lucky minority barely register teething at all, which is also completely normal. Research on eruption symptoms suggests discomfort tends to concentrate in a short window — roughly the few days before a tooth breaks through and the day or two after — rather than dragging on for weeks per tooth. If your toddler has been miserable for three straight weeks, teething is probably not the whole story, and it’s worth looking for other causes.

Does teething cause fever, diarrhea, or a runny nose?

This is the most important myth to bust, because getting it wrong can delay care for a genuinely sick baby. The evidence is clear: teething does not cause true fever. Mayo Clinic, the NHS, and Cleveland Clinic all state this plainly, and a large review of eruption studies found the same pattern — teething may nudge body temperature up slightly, but it does not push it to 100.4°F (38°C) or above. A temperature at or past that line is a fever, and a fever has a cause other than teeth.

The same goes for diarrhea, vomiting, and significant congestion. None are teething symptoms. The old explanation — that swallowed drool loosens stools — hasn’t held up under study, and blaming loose stools on teeth can mean missing a stomach bug that needs attention, especially in a baby at risk of dehydration.

Why does the myth persist? Timing, mostly. Teething peaks between 6 and 24 months — precisely the stretch when the antibodies a baby received from the birthing parent are fading, daycare germs are circulating, and infants catch an average of several colds and stomach bugs a year. Two common events overlapping constantly will always look connected. Add the fact that babies this age put everything in their mouths, giving viruses an easy route in, and the coincidence machine runs nonstop.

The practical translation: fussiness, drool, and gum-chewing — think teething. Fever of 100.4°F or higher, diarrhea, vomiting, rash beyond the chin, or a truly sick-seeming baby — think illness, and treat it as such.

How long does teething pain actually last?

Shorter than most parents expect — per tooth, anyway. Research tracking daily symptoms around individual tooth eruptions found that discomfort clusters in a window of roughly eight days: about four days before the tooth breaks the gum, the day of eruption, and around three days after. Outside that window, the tooth is moving quietly through bone and tissue, usually without much drama.

The catch is arithmetic. Twenty teeth, each with its own window, spread across two and a half years — and often overlapping, especially during the molar months. That’s why teething can feel like a permanent condition even though any single tooth’s contribution is brief. It’s also why the phrase “he’s been teething for six weeks” deserves gentle skepticism. Prolonged, unbroken misery is more likely to be a string of minor illnesses, an ear infection, a sleep-schedule shift, or an ordinary developmental leap wearing a teething costume.

There’s a useful upside to the eight-day framing: it gives you an endpoint. When a rough patch starts, check the gums. If you can see a pale bump or feel a hard edge, you’re probably in the pre-eruption stretch, and relief typically follows within days of breakthrough. Discomfort also tends to run worse at night — not because the tooth moves faster after dark, but because a tired baby with nothing to distract them notices sore gums more, the same way adults notice a toothache most at bedtime.

Pace yourself accordingly. Teething is a series of short storms, not one long season of rain.

How can I soothe a teething baby? What actually works

The best remedies share one mechanism: cold and counter-pressure. Pressure on the gum from the outside offsets the pressure of the tooth pushing from below, and cold dulls the nerve signals. Everything on the short list below is endorsed by Mayo Clinic and the NHS:

• Gum massage. Wash your hands and rub the sore spot firmly with a fingertip or a damp gauze pad for a minute or two. Simple, free, and often the fastest fix.
• A chilled — not frozen — teething ring. Refrigerate a solid rubber or silicone teether. Skip the freezer: frozen-solid teethers get hard enough to bruise gums, and extreme cold can hurt more than it helps.
• A cold washcloth. Wet a clean cloth, chill it, and let your baby chew one corner. The texture adds useful friction, and it’s the cheapest teether ever invented.
• Cold foods, if solids have started. For babies already eating, chilled purée or yogurt can soothe from the inside. Always supervise anything eaten or chewed.
• Drool defense. Wipe the chin often and keep it dry; a thin layer of a plain barrier ointment helps prevent the red drool rash that makes everything worse.
• Extra comfort. Rocking, nursing, babywearing, distraction — unglamorous, but a regulated, comforted baby genuinely perceives less pain.

If a tooth is clearly close and your baby is having a hard night despite all of the above, ask your pediatrician whether an age-appropriate pain reliever makes sense and how to give it correctly. That conversation matters: the right choice depends on your baby’s age and weight, and it’s a decision to make with a clinician rather than a search bar.

Teething remedies to skip — even the popular ones

A few products endure on charm rather than evidence, and some carry real risk.

• Amber teething necklaces. The claim is that body heat releases a soothing compound from the amber. There’s no credible evidence it works — and there is documented harm. Any cord around an infant’s neck is a strangulation hazard, and detached beads are a choking hazard. Pediatric groups and the NHS advise against them, full stop. The same goes for necklaces of wood, marble, or silicone beads.
• Over-the-counter numbing gels and liquids. Products that numb the gums wash away in saliva within minutes, and certain numbing ingredients have been linked to a rare but serious blood disorder in infants called methemoglobinemia, which reduces the blood’s ability to carry oxygen. Mayo Clinic advises keeping these away from babies. Prescription-strength numbing liquids are riskier still.
• Homeopathic teething tablets and gels. Regulators have warned about inconsistent ingredient levels in some of these products, including plant-derived compounds that can be harmful to infants. No proven benefit, non-zero risk — an easy pass.
• Frozen teethers and liquid-filled rings. Freezing makes teethers gum-bruisingly hard, and a determined gnawer can puncture a liquid-filled ring. Chill in the refrigerator instead, and choose one-piece solid designs.
• Teething biscuits and rusks. Many are essentially sweetened crackers; pieces can break off and pose a choking risk, and frequent sugar contact is unkind to teeth that just arrived. A chilled washcloth does the same job better.

The pattern is worth noticing: every safe, effective option is boring — cold, pressure, comfort. Anything promising more than that is usually selling the promise, not the relief.

What if my baby has no teeth at 12 months?

Take a breath — a toothless first birthday is more common than the baby-book charts suggest, and in the great majority of cases it means nothing more than a family tendency toward late eruption. Genetics dominates teething timing, and late teethers usually have a late-teething parent somewhere in the family tree. Babies born prematurely also tend to run behind the chart, in proportion to how early they arrived.

The benchmark clinicians actually use is 18 months. If no tooth has erupted by then, MedlinePlus and pediatric dental guidance recommend an evaluation by a dentist or pediatrician. Even then, the most frequent finding is simply “late but normal,” confirmed with an exam and sometimes an X-ray showing all 20 teeth queued up and on their way.

Less commonly, delayed eruption traces to an identifiable cause worth knowing about: nutritional deficiencies (including vitamin D–related rickets, now rare where infant vitamin D supplementation is routine), thyroid conditions, and certain genetic syndromes that affect tooth and bone development. Occasionally a tooth is present but physically blocked. These are exactly the possibilities an 18-month checkup is designed to catch — and to rule out, which it usually does.

One reassuring footnote: late baby teeth are sometimes better-positioned baby teeth. Eruption timing has no bearing on tooth quality, and a slow start doesn’t predict problems with the permanent teeth that begin arriving around age 6. In teething, as in walking and talking, the range of normal is far wider than the average.

How do I care for those first teeth?

Dental care starts before dentition does. From the newborn weeks, you can wipe your baby’s gums twice a day with a clean, damp washcloth or gauze — after the morning feed and before bed. It clears bacteria and, just as usefully, gets your baby accustomed to having someone work in their mouth, which pays off enormously at toothbrushing time.

Once the first tooth erupts, it can decay — so it gets brushed. Use a soft-bristled infant toothbrush twice a day with a smear of fluoride toothpaste no bigger than a grain of rice, the amount recommended by the CDC and pediatric dental groups for children under 3. That tiny smear protects the enamel while keeping swallowed fluoride to a negligible amount. Brush gently along the gum line, where drool-fed bacteria like to settle.

Two habits matter more than any gadget:

• No bottles in bed. Milk or formula pooling around teeth overnight is the classic recipe for early childhood cavities — sometimes called baby bottle tooth decay, and it can damage front teeth within months. If your baby needs a bedtime bottle, finish it before sleep.
• Keep sugary liquids out of sippy cups. Juice sipped slowly all day bathes new teeth in sugar for hours. Water between meals is the kind default.

Book the first dental visit by the first birthday or within six months of the first tooth, whichever comes first. It sounds early, but that visit is mostly coaching — a professional checks eruption, demonstrates brushing, talks fluoride, and answers your questions before problems start. Baby teeth are not disposable: they hold space for permanent teeth, shape the jaw, and matter for chewing and speech for the better part of a decade.

Is teething ruining my baby's sleep — or is it something else?

Sometimes it’s the tooth. Often it isn’t. Teething discomfort does peak at night, when a tired baby has no distractions and lying down increases blood flow to the head, making tender gums throb a little more. During the genuine eruption window — those few days around breakthrough — extra night waking is real and expected.

But teething also happens to overlap with nearly every famous sleep disruption of the first two years. The 6-month range coincides with a common sleep regression and the start of separation anxiety. The 8-to-10-month stretch brings crawling and pulling to stand — skills babies enthusiastically rehearse in the crib at 3 a.m. The 12-to-18-month molar season collides with nap transitions and early independence struggles. When a wakeful week gets labeled “teething,” the label is right maybe some of the time, and comfortably wrong the rest.

Why does the distinction matter? Because the responses differ. Genuine teething pain deserves comfort: gum massage, a chilled teether before bed, extra cuddles, and a conversation with your pediatrician if a rough night calls for pain relief. A developmental or habit-driven waking, on the other hand, is best met with consistency — the same soothing routine, the same response, so the disruption stays temporary.

A practical test: check the gums by daylight. A visible bump or freshly broken tooth supports the teething theory, and the disruption should resolve within a few days of eruption. No bump, no new tooth, and the waking has lasted more than a week? Look toward development, illness, or routine — and protect the bedtime rituals either way. Babies in pain still benefit from predictability; it’s comfort and structure, not one or the other.

When should you call the doctor about teething symptoms?

Most teething needs a washcloth, not a waiting room. But because the classic teething age overlaps with the age when real illnesses spike, certain signs should always prompt a call — and should never be waved off as “just teeth.”

Call your pediatrician promptly if your baby has:

• A temperature of 100.4°F (38°C) or higher — in a baby under 3 months, this is urgent regardless of any other symptom.
• Diarrhea, vomiting, or signs of dehydration such as fewer wet diapers, a dry mouth, or no tears when crying.
• Refusal to feed for more than a feed or two, or notably reduced intake over a day.
• A rash beyond ordinary chin drool rash, unusual sleepiness, or inconsolable crying that comfort measures don’t touch.
• Ear-pulling plus fever or cold symptoms — that combination points toward an ear infection, which teething can mimic.
• Gums that look intensely red or purple over a wide area, bleed more than a trace, or show signs of infection such as pus.

Schedule a routine (non-urgent) visit if: no teeth have appeared by 18 months; a natal or neonatal tooth is loose; a tooth erupts markedly out of sequence and you’re concerned; or you want guidance on pain relief before trying anything from a pharmacy shelf.

The guiding principle is simple and worth repeating: teething makes babies drooly and cranky. It does not make them sick. A baby who seems genuinely unwell has something else going on, and a same-day call is never an overreaction. Pediatric offices field these calls constantly — that’s what they’re for.

Frequently asked questions

What are the first signs of teething?

The earliest signs are heavy drooling, gnawing on hands and objects, swollen or tender gums, mild fussiness, and sometimes a flushed cheek or ear-rubbing on the affected side. These usually appear days to weeks before a tooth is visible. The most reliable check is to run a clean finger along the gum line — a tooth close to erupting feels like a hard grain of rice just under the surface.

Can a 3-month-old be teething?

It’s possible but uncommon. A small number of babies cut a first tooth around 3 months, and early teething often runs in families. More often, the drooling and fist-chewing at this age come from maturing salivary glands and normal hand discovery, which mimic teething convincingly. Feel the gums: without a hard bump under the surface, actual eruption is probably still months away.

Can a baby be teething at 2 months?

Very rarely. True tooth eruption at 2 months is unusual, though roughly 1 in 2,000 to 3,000 babies is born with a natal tooth or erupts one in the first month. What most parents see at 2 months is developmental drooling and mouthing, which looks identical to teething but isn’t driven by gum pain. If your newborn does have a visible tooth, have your pediatrician check whether it’s stable, since loose natal teeth pose a choking risk.

What are the worst months for teething?

Most families report the roughest stretch between about 12 and 24 months, when the first molars (13–19 months) and canines (16–23 months) erupt. Molars have a much larger surface pushing through the gum than the thin front incisors, and several teeth often move at once during this phase. Second molars, arriving around 23–33 months, are the largest — but by then most toddlers can communicate what hurts, which makes coping easier.

How long does teething last for each tooth?

Research suggests discomfort clusters in roughly an eight-day window per tooth — about four days before it breaks through the gum, the day of eruption, and around three days after. Because 20 teeth erupt over about two and a half years, often overlapping, teething can feel continuous even though each tooth’s contribution is brief. Misery lasting several unbroken weeks usually has another explanation, such as minor illnesses or sleep changes.

Does teething cause fever?

No — not a true fever. Evidence reviewed by major medical centers shows teething may raise body temperature slightly, but it does not cause a reading of 100.4°F (38°C) or higher. A temperature at or above that threshold signals illness, not teeth, and warrants a call to your pediatrician — urgently so in a baby under 3 months. The myth persists because teething and frequent infant infections happen to peak during the same months.

Are amber teething necklaces safe?

No. There is no credible evidence that amber necklaces relieve teething pain, and they carry documented dangers: any cord around an infant’s neck is a strangulation hazard, and detached beads are a choking hazard. Pediatric organizations and the NHS advise against them entirely, including versions made of wood, marble, or silicone beads. A chilled solid teether or a cold washcloth soothes gums more effectively with none of the risk.

My baby has no teeth at 1 year — should I worry?

Usually not. Late teething is most often a harmless family trait, and babies born prematurely commonly run behind the standard chart. The clinical benchmark is 18 months: if no tooth has appeared by then, guidelines recommend an evaluation by a dentist or pediatrician, who may take an X-ray to confirm the teeth are present and on their way. Even at that stage, the most frequent finding is simply late-but-normal eruption.

When should I start brushing my baby's teeth?

As soon as the first tooth erupts. Use a soft infant toothbrush twice daily with a smear of fluoride toothpaste no larger than a grain of rice, the amount recommended for children under 3. Before any teeth appear, wiping the gums with a clean, damp cloth twice a day clears bacteria and gets your baby used to mouth care. Schedule the first dental visit by the first birthday or within six months of the first tooth.

How do I treat drool rash from teething?

Keep the skin clean and dry, then protect it. Gently pat — don’t rub — the chin and neck folds dry throughout the day, change soaked bibs often, and apply a thin layer of a plain barrier ointment to shield the skin from constant moisture. Most drool rash fades within days once the skin is protected. If the rash spreads well beyond the drool zone, cracks, weeps, or seems painful, ask your pediatrician to take a look.

References

• NHS — Baby teething symptoms
• NHS — Tips for helping your teething baby
• MedlinePlus — Teething

This article is for general information only and is not a substitute for professional medical advice. Please consult a qualified doctor about your individual situation.