Babies can start the teething process as early as 2–3 months, but most get their first visible tooth around 4–7 months, with 6 months often quoted as “average.”

Quick Scoop: How early can babies start teething?

  • Many babies begin teething between 4–7 months.
  • Some perfectly healthy babies get their first tooth as early as 3 months.
  • A few start the internal teething process (drooling, chewing, fussy gums) around 2–4 months, even if no tooth appears yet.
  • Others may not show a tooth until 10–12 months or even a little later, and this can still be normal.
  • In rare cases, babies are born with a tooth or develop one in the first weeks of life (called natal or neonatal teeth).

So, in simple terms :

  • Earliest common “start” (signs): about 2–3 months.
  • Earliest common visible tooth: about 3–4 months.
  • Most babies: first tooth around 6 months.

What early teething can look like

You might notice, even before a tooth shows:

  • Extra drooling and wet bibs or clothes.
  • Chewing on hands, your fingers, or toys more than usual.
  • Mild fussiness or disrupted sleep.
  • Swollen or slightly bumpy gums where a tooth will emerge.

These signs can appear weeks or months before the tooth actually pops through, which is why a 3‑month‑old can “seem” to be teething even if no tooth is visible yet.

What’s still normal vs. when to call the doctor

Most timing differences are just your baby’s individual pace. Still, it’s wise to check in with a pediatrician or pediatric dentist if:

  • No teeth have appeared by about 12–15 months.
  • Your baby has high fever, severe diarrhea, or looks very unwell (these are not typical teething symptoms and may point to an illness).
  • You see teeth present at birth or in the first month (natal/neonatal teeth) to make sure they’re stable and not causing feeding problems.

Tiny example story

Imagine a baby named Mia:

  • At 3 months, she starts drooling a lot and gnawing on her fists. No teeth yet, but her gums are busy beneath the surface.
  • At 5 months, her bottom front gum looks a bit swollen, and she’s crankier at night.
  • At 6 months, a tiny white corner finally breaks through—right in the typical window.

Another baby the same age might not get that first tooth until 10 months and still be completely healthy.

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Many babies start teething between 4–7 months, but early signs can begin at 2–3 months and some get a first tooth as early as 3 months, all within a wide range of normal.

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