At What Age Do You Start Teething? | Baby Teeth Timeline

Most babies get their first tooth between 4 and 7 months, though a normal window can run from about 3 to 12 months.

Teething usually starts in the middle of the first year, but there is plenty of wiggle room. One baby may cut a tooth at 4 months. Another may not show one until closer to the first birthday. Both can be normal.

That range is why parents get mixed answers when they ask about teething age. There is no single date on the calendar. What matters more is the pattern: your baby starts drooling more, wants to chew, gums look swollen, and then a tooth breaks through. In many babies, the lower front teeth show up first.

If you want the plain answer, think of teething as a process that often begins around 6 months, with early signs sometimes showing up sooner. The first tooth may arrive with a fuss, or it may slip in so quietly that you spot it during a grin at bath time.

When Teething Starts For Most Babies

The American Academy of Pediatrics says teething often starts between 4 and 7 months, while the NHS notes that some babies start before 4 months and some after 12 months. That sounds broad because it is broad. Baby teeth do not read the same schedule book.

Family pattern can shape timing. If parents got teeth late, their child may do the same. Premature babies may also follow a different clock. A later first tooth does not automatically point to a problem.

Most babies have all 20 baby teeth by about age 3. That means teething is not one short phase. It comes in waves. A rough week can be followed by a calm stretch, then another tooth starts pushing up.

What Counts As Early Or Late

A tooth at 3 months can still fall inside the normal range. A first tooth at 10 or 11 months can still be normal too. Doctors usually pay more attention when there are no teeth by about 12 to 18 months, or when there are other growth or health concerns alongside delayed eruption.

That is one reason panic rarely helps here. A baby with no tooth at 9 months may still be right on track. A baby with two teeth at 5 months is not racing ahead in a way that changes long-term dental health.

Why The Age Range Is So Wide

• Genes can shift the timing.
• Birth history can shift the timing.
• Some babies feel gum discomfort weeks before a tooth shows.
• Some babies show almost no signs at all.
• Teeth do not always erupt in the exact same order.

So when parents ask, “When does teething start?” the clearest answer is this: the first tooth often appears around 6 months, but the normal window is wider than many people expect.

Signs That Teething Is Starting

Teething signs can start before the tooth becomes visible. The gums may look puffy. Your baby may chew on fingers, bibs, toys, or the edge of a clean washcloth. Drool often ramps up. Fussiness may come and go.

Still, teething gets blamed for things it does not always cause. A mild rise in temperature can happen. A true fever, diarrhea, rash across the body, or a baby who seems plainly unwell should not be brushed off as “just teething.” That is one spot where caution beats guessing.

You can read the pediatric timing range on HealthyChildren.org’s teething age page, and the NHS also lists the usual symptoms and timing on its teething advice page.

Teething Stage	Usual Age Range	What You May Notice
Early gum changes	3 to 6 months	More chewing, more drool, gums look fuller
First front tooth	4 to 7 months	Swollen gum ridge, cranky spells, sudden hard spot
Top and bottom incisors	6 to 12 months	Short bursts of fussiness, more biting on toys
Front smile fills in	9 to 16 months	Visible gaps close as more incisors arrive
First molars	13 to 19 months	Gum tenderness farther back in the mouth
Canines	16 to 23 months	Another round of chewing and gum rubbing
Second molars	23 to 33 months	Last baby teeth come through in the back

At What Age Do You Start Teething? What The Usual Pattern Looks Like

The usual order starts with the bottom central incisors, then the top central incisors. After that, the side incisors often come next, followed by first molars, canines, and second molars. The order can vary a bit, and that alone is not a red flag.

Parents often expect a straight march from one tooth to the next. Real life is messier. A child may get two teeth close together, then nothing for weeks. Another may get one top tooth before the matching partner.

That stop-and-start rhythm is part of why teething can feel longer than it sounds on paper. It is less like one event and more like a string of little arrivals spread across two and a half years.

What Teething Does And Does Not Cause

Common teething signs include drooling, gum soreness, chewing, and mild irritability. The Mayo Clinic notes that teething can cause sore gums and crankiness, but it is not known to cause high fever, diarrhea, or serious illness. You can check its baby teething advice for soothing steps and care tips.

If your baby has a temperature over 100.4°F, refuses fluids, seems limp, or has symptoms that feel out of proportion, it is smart to call your pediatrician instead of pinning everything on teeth.

How To Make Teething Easier

You do not need a packed drawer of gadgets. A few simple things help more than a pile of teething gimmicks.

• Rub the gums with a clean finger.
• Offer a chilled teething ring, not a frozen one.
• Use a cool, clean washcloth for chewing.
• Wipe drool often to cut down on chin irritation.
• If your clinician says it is appropriate, use pain relief made for your child’s age and weight.

Skip teething necklaces. They carry choking and strangulation risk. Teething gels are also not a first pick for many babies. The safer basics tend to work well enough for most families.

Once the first tooth appears, start brushing with a soft baby toothbrush and a smear of fluoride toothpaste about the size of a grain of rice. The NHS teething page pairs teething advice with mouth-care tips that line up with that early routine.

Symptom	Usually Fine At Home	Call A Doctor
Drooling	Yes, common during teething	If baby will not drink or seems dehydrated
Mild gum soreness	Yes, common	If pain seems severe or lasts without a tooth appearing
Chewing on objects	Yes, common	If baby gags often or puts unsafe items in the mouth
Fussiness	Yes, short spells are common	If baby is hard to settle for long stretches
Fever, vomiting, diarrhea	No, do not assume teething	Yes, especially in young infants

When A Late First Tooth Needs A Closer Look

A later teething age is often still normal. Still, there are moments when it makes sense to ask for a medical or dental opinion. If there are no teeth by 12 to 18 months, or if your baby has feeding trouble, poor growth, or other delays, a clinician may want a closer check.

Most of the time, late teething on its own is just late teething. That is the part that surprises many parents. Teeth follow a timetable, but not a stopwatch.

Baby Teeth Care Starts With The First Tooth

Once a tooth shows, oral care starts right away. Brush twice a day. Do not put a baby to bed with a bottle unless it is plain water. Ask your child’s dentist or pediatrician when to book the first dental visit. Many groups advise going by the first birthday or within six months of the first tooth.

That early care matters because baby teeth hold space for adult teeth, help with speech, and let kids chew comfortably. Small teeth still do a big job.

What Parents Can Take From All This

If your baby is around 4 to 7 months and chewing everything in sight, teething may be starting. If your child is older and still toothless, that can still fall inside the normal range. The first tooth often comes near 6 months, but nature allows plenty of variation.

Watch the whole child, not just the gums. Mild drool, chewing, and crankiness fit teething. A baby who seems truly sick needs a different lens. That one distinction can save a lot of second-guessing.

And once that first tiny tooth appears, start brushing. Teething is not just about timing. It is the opening chapter of oral care.