Baby growth spurts: timeline, signs & what to do
One day your settled baby is suddenly feeding non-stop, fussy, and waking more — and you're sure something's wrong. Often it's just a growth spurt: a few intense days where your baby grows and rewrites the routine. Here's when to expect them and how to ride them out.
The usual timeline
Growth spurts vary, but they commonly cluster around these ages:
| Around | What you may notice |
|---|---|
| 2–3 weeks | First big spurt — lots of feeding, fussiness |
| 6 weeks | More feeding, shorter naps, clinginess |
| 3 months | Feeding pattern shifts, possible sleep wobble |
| 6 months | Often around starting solids and new mobility |
Signs it's a growth spurt
- Sudden increase in feeding — wanting to feed far more often, including cluster feeding.
- Fussier than usual and harder to settle.
- Sleep changes — extra naps, or more night waking.
- It appears suddenly and lasts only a few days.
How long do they last?
Most growth spurts pass in 2–3 days, sometimes up to a week. If the "spurt" drags on for much longer, or your baby seems unwell rather than just hungry, check with your paediatrician — not every fussy stretch is a growth spurt (teething, illness, and leaps can look similar).
How to get through it
- Feed on demand — don't try to hold a schedule during a spurt.
- Lower expectations for the day and accept the help that's offered.
- Look back at your log — seeing "this happened last month too, and passed in 3 days" is genuinely calming.
Spot the spurt instead of panicking through it
When every feed is logged, a growth spurt is obvious in hindsight — and reassuring in the moment. Track feeds, naps, and diapers in a tap, synced across your family's phones.
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Related guides
This is general information, not medical advice. If your baby seems unwell, isn't feeding, or you're worried, contact your paediatrician.