If your baby suddenly seems hungrier, fussier, and harder to settle for a few days, you are probably in the middle of a growth spurt. Newborn growth spurts typically cluster around one to two weeks, two to three weeks, six weeks, three months, six months, and nine months, and most last around two to three days. It can feel intense while you are in it, but it is a completely normal part of your baby's development, not a sign that something is wrong.
I have been through this three times now, and every one of my kids handled growth spurts a little differently. My youngest would nurse almost around the clock for a day and then sleep hard the next, while my middle one mostly just got clingy and wanted to be held nonstop. There is no single "right" way a growth spurt looks, which is honestly one of the more reassuring things to know going in.
When Do Newborn Growth Spurts Happen?
Newborn growth spurts tend to cluster around a handful of predictable windows in the first year, though the exact timing can shift by a few days in either direction for any individual baby. Most parents notice the first one within the first couple of weeks, with several more following at fairly consistent points through the following months.
| Typical Age | Growth Spurt |
| 7 to 14 days | First growth spurt |
| 2 to 3 weeks | Second growth spurt |
| 6 weeks | Third growth spurt |
| 3 months | Fourth growth spurt |
| 6 months | Fifth growth spurt |
| 9 months | Sixth growth spurt |
Think of this chart as a general guide rather than a fixed schedule. Babies grow in the same unpredictable, uneven way they do everything else, so do not worry if your baby's spurt lands a few days earlier or later than what is listed here, or if one of the windows seems to pass by without much fuss at all.
How Long Do Newborn Growth Spurts Last?
Most newborn growth spurts last around two to three days, though some can stretch closer to a week before things settle back into a more familiar rhythm. During that window it is common for a baby to feed more often, sleep a little differently, and generally seem less like their usual self.
Once the spurt passes, most babies return to something close to their previous feeding and sleeping pattern fairly quickly. If the extra fussiness or feeding is dragging on well past a week, or something about it feels different from your baby's usual pattern, it is worth mentioning to your pediatrician, mostly so you can rule out anything else going on and get some peace of mind.
Signs of a Newborn Growth Spurt
The clearest sign of a growth spurt is a baby who is suddenly hungrier and clingier than usual, with little else that explains the change. Feeding sessions tend to happen more often or run longer, sleep patterns can shift for a few days, and your baby may simply want to be held more than they have lately.
- Eating more often, for longer stretches, or both, compared to your baby's usual pattern.
- Increased fussiness or a stronger need to be held, worn, or rocked than usual.
- Waking more overnight after a stretch of longer, more settled sleep.
- A jump in length or weight your pediatrician may point out at the next check-up.
- Seeming unusually sleepy for a day, then more alert or a bit unsettled the next.
Not every baby shows every sign, and some show barely any at all. If your baby is feeding well, having enough wet and dirty diapers, and settling again within a few days, that mix of signs, however mild or intense, is almost always just a growth spurt working its way through.
Growth Spurts and Feeding
Increased hunger is usually the most noticeable part of a growth spurt, whether your baby is breastfed, formula fed, or some combination of the two. The instinct to feed more often during these stretches is exactly how a baby signals their body to keep up with a period of faster growth, so leaning into it rather than fighting it tends to make the whole thing shorter and easier.
Breastfeeding During a Growth Spurt
Cluster feeding, where your baby wants to nurse almost constantly for a day or two, is one of the most common growth spurt signs for breastfed babies. It can feel alarming if you assume it means your supply is not keeping up, but that extra demand is actually what tells your body to produce more milk over the following days. With my first, I genuinely worried I did not have enough milk every time this happened. By the second and third, I understood that the "not enough" feeling was the system working as intended, not a problem to fix.
A lot of parents hear from a well meaning nurse, relative, or friend that their milk supply or its richness is not enough, and that suggestion alone can create real stress, which can genuinely slow supply down. If your baby is having enough wet diapers and is gaining weight over time, extra fussiness or cluster feeding during a growth spurt is not, on its own, a sign that anything is wrong with your milk.
Formula-Feeding During a Growth Spurt
Formula fed babies go through the exact same growth spurts, and the sign to watch for is similar: your baby finishing bottles faster, asking to eat sooner than usual, or simply seeming unsatisfied at the end of a feed. Rather than sticking rigidly to a set number of ounces, most pediatricians recommend following your baby's hunger cues during these stretches and offering a little more at a feed or an extra feed here and there.
This extra intake is temporary and tends to level off again within a few days, right along with everything else about the growth spurt. If you are ever unsure how much extra is reasonable for your baby's age and weight, a quick call to your pediatrician's office is always a good way to double check.
Growth Spurt or Something Else?
Growth spurt fussiness usually resolves on its own within a few days and comes alongside a baby who is still feeding well and can be soothed, at least some of the time, with holding, feeding, or motion. Colic and reflux tend to look and feel different, and it can help to know the general pattern of each.
Colic is often described using the "rule of three": crying for more than three hours a day, more than three days a week, for longer than three weeks, frequently clustered around the same time each evening. Reflux tends to show up as arching or pulling away during or right after feeds, frequent spit up paired with visible discomfort, and a baby who seems unhappy lying flat soon after eating.
A growth spurt, by contrast, is usually shorter, resolves within a matter of days, and does not come with the same feeding-time distress or after-meal discomfort. If your baby's fussiness is lasting longer than a week, is not responding to any of your usual soothing tricks, or comes with signs like arching, spit up paired with clear pain, or crying that will not let up, it is worth talking to your pediatrician to rule out colic, reflux, or something else entirely.
Every Baby Grows at Their Own Pace
It helps to remember just how much normal variation exists from one baby to the next, and even between siblings raised in the exact same home. My first was 3800 grams at birth, then lost enough weight in the first few days that we were not cleared to leave the hospital on schedule, down to around 3100 grams before he started climbing steadily again. My middle child was 4510 grams at birth, and my youngest was 3825 grams and 52 centimeters long, a bit longer than either of her brothers were at birth, even though she has stayed shorter than they were at the same age ever since.
All three of my kids hit their growth spurt windows around the same general ages, though I could not tell you today which days were harder for which child. What I remember more clearly is a friend from my new parent group who was told her happy, thriving baby was not gaining enough weight and needed to supplement with formula, only to be told a few months later that he was gaining too much and she should breastfeed less. It sometimes feels like you cannot win, which is exactly why it is worth trusting your baby's actual feeding, wet diapers, and overall mood over any single number on a chart, and bringing real concerns straight to your pediatrician rather than to well meaning advice from every direction.
How to Get Through a Growth Spurt
The most useful thing you can do during a growth spurt is lower your expectations for a few days and lean into what your baby is asking for. That usually means more feeding, more holding, and less rigid adherence to whatever schedule you had settled into the week before.
Movement has been one of my most reliable tools through every fussy stretch with all three of my kids, growth spurts included. A short walk, a bounce on an exercise ball, or gentle rocking can settle a baby who nothing else seems to reach, and there is nothing wrong with leaning on it as much as you need to. If nights are especially rough during a spurt, our guide on how to get sleep with a newborn has more practical ideas for getting through the toughest stretches.
A hands free option like the Sleepytroll Stroller Rocker can take some of the physical load off during these stretches, whether you are trying to eat a meal with a hand free or keep an older sibling entertained while the baby needs near constant motion. And if you are looking for a broader set of tools for the early weeks and months in general, our advice for new parents guide is a good place to start.
In Short
- Newborn growth spurts typically happen around one to two weeks, two to three weeks, six weeks, three months, six months, and nine months, and most last two to three days.
- Watch for more frequent feeding, increased fussiness, a stronger need to be held, and shifts in sleep, though not every baby shows every sign.
- Breastfed and formula fed babies both eat more during a growth spurt. Following your baby's hunger cues rather than the clock is the simplest way through it.
- Growth spurt fussiness usually resolves within days. Longer lasting distress, or signs like arching and painful spit up, are worth a call to your pediatrician to rule out colic or reflux.
- Every baby grows differently, even siblings raised in the same home, so trust your baby's overall feeding, diapers, and mood over any single number.
Disclaimer: This article provides general information based on common newborn development patterns and is not a substitute for professional medical advice. Always consult your pediatrician regarding your baby's specific growth and feeding needs.
Frequently Asked Questions
What Are the Signs of a Growth Spurt in a Newborn?
The main signs are increased hunger, more fussiness or a stronger need to be held, and some disruption to your baby's usual sleep pattern for a few days. Your pediatrician may also note a jump in length or weight at your next check-up, though not every baby shows every sign.
How Often Do Newborns Get Growth Spurts?
Most babies go through around six recognized growth spurts in their first year, typically clustered around one to two weeks, two to three weeks, six weeks, three months, six months, and nine months. The exact timing varies from baby to baby, so treat these ages as general guidelines rather than a fixed schedule.
When Are Newborn Growth Spurts?
The most common windows are one to two weeks, two to three weeks, and six weeks, followed by additional spurts around three, six, and nine months. Some babies show clear signs at every window, while others sail through one or two without much noticeable change.
How Long Do Newborn Growth Spurts Last?
Most growth spurts last around two to three days, occasionally stretching closer to a week before your baby settles back into a familiar routine. If fussiness or increased feeding lasts much longer than that, it is worth checking in with your pediatrician.
Ready for more support through the early months? Explore the Sleepytroll Stroller Rocker Gen 2.