Does a baby head grow after birth?
Emma Payne
Published Jan 23, 2026
Your baby's head will grow at its fastest rate during the first 4 months after birth than at any other time. This increase is due to rapid brain growth. The average head circumference at birth is about 13.5 in. (34.5 cm).
How long does it take for a babies head to reshape after birth?
When babies are born their skulls are soft, which helps them pass through the birth canal. It can take 9-18 months before a baby's skull is fully formed. During this time some babies develop positional plagiocephaly. This means that there is a flat area on the back or side of the head.
Will my baby's head get bigger?
The bones in your baby's skull are still growing together, and the skull is growing faster during the first four months than at any other time in her life. The average newborn's head circumference measures about 13 3⁄4 inches (35 cm), growing to about 15 inches (38 cm) by one month.
How much does a baby's head grow?
Height: average growth of ½ to 1 inch each month. Head size: average growth of about ½ inch each month.
Does a baby's head changing shape after birth?
Don't worry this is very normal. Their heads will round themselves out a week or longer after birth. Your baby's head shape may change again once they hit the 1- to 2-month mark. This is also normal and is usually just caused by your baby lying on their back or one side for too long.
23 related questions foundWill baby head round out?
A newborn's head is pliable and soft to allow the baby's skull to move through the birth canal. It's normal for babies' heads to become misshapen after birth and in the first few months of life. Fortunately, most heads will round out during infancy.
Can U shape a baby's head?
You can help your baby's head return to a more rounded shape by altering her position while she's asleep, feeding and playing. Changing your baby's position is called counter-positioning or repositioning. It encourages the flattened areas of your baby's head to reshape naturally.
What if baby's head is small?
Microcephaly is a condition where a baby's head is much smaller than expected. During pregnancy, a baby's head grows because the baby's brain grows. Microcephaly can occur because a baby's brain has not developed properly during pregnancy or has stopped growing after birth, which results in a smaller head size.
How big is a baby's head at birth?
The average newborn's head measures 13 3/4 in (35 cm) Generally, a newborn's head is about half the baby's body length in cm plus10 cm. So a baby that's 18 inches long would be 45.7 centimeters (18 x 2.54). Their head would be about 32.9 cm, or a little under 13 inches.
Should I be worried if my baby has a big head?
The medical term for a large head is "macrocephaly." Most of the time, it isn't a serious condition, so parents don't need to worry about it. In rare cases, however, it can be an indication that your baby has other health conditions. Learn more about macrocephaly and what it means.
Does your head grow bigger?
People Don't Grow Forever
The only bones that continue to get larger are the skull and the pelvis. The growth of these two body parts isn't dramatic, however. Your pelvis might gain an inch in diameter between the ages of 20 and 79, and your skull may get slightly more prominent around the forehead.
Why do babies heads get bigger?
Babies are born with soft areas on their heads called fontanels. The skull bones in the soft spots haven't yet grown together. The soft spots allow a baby's relatively large head to move through the narrow birth canal. They also accommodate a baby's rapidly growing brain during infancy.
How do I stop getting a flat head?
Try these tips:
- Practice tummy time. Provide plenty of supervised time for your baby to lie on the stomach while awake during the day. ...
- Vary positions in the crib. Consider how you lay your baby down in the crib. ...
- Hold your baby more often. ...
- Change the head position while your baby sleeps.
Do all babies get flat spot?
Nearly Half of Infants Have Flat Spot on Head: Study. MONDAY, July 8 (HealthDay News) -- Putting babies on their backs to sleep has sharply cut the rate of Sudden Infant Death Syndrome (SIDS), but it has also left nearly half of infants with a flattened heads, a new Canadian study estimates.
What month are intelligent babies born?
Those born in September are, apparently, the smartest out of the entire year. According to Marie Claire, a study published in the National Bureau of Economic Research found that there's a clear correlation between the month during which you were born and how smart you are.
How can I make my baby's head grow?
Put your baby on your chest on their tummy facing you and softly talk to them to try to encourage them to lift their head. Put your baby, belly down, on your thighs and gently rub their back. Holding your baby upright over your shoulder while gently supporting their head also strengthens their neck and back muscles.
When do newborns start looking cute?
Wrinkly, red, and oftentimes furry, babies aren't much to look at right off the bat. In fact, the results of a recent survey published in Evolution and Human Behavior found that we don't find babies cute until three, or even six months of age. From there, babies remain at peak cuteness until around age four-and-a-half.
Why would a baby's head not grow?
Microcephaly is a rare nervous system disorder that causes a baby's head to be small and not fully developed. The child's brain stops growing as it should. This can happen while the baby is still in the mother's womb or within the first few years of birth.
Does a small head mean a small brain?
The head circumference of a child has essentially nothing to do with intelligence and, as long as your baby's head is average-size and regularly growing, there's no cause for alarm when they come in a bit behind the curve.
How do I shape my 4 month old head?
So here the baby head round shape tips.
- Changing direction within the crib. Whenever you place your baby in a crib on a bed to sleep, keep on changing your baby's position. ...
- Hold your baby. ...
- Try tummy time. ...
- Add a variety to babies back time. ...
- Vary your babies' activity throughout the day. ...
- Beyond positional molding.
Does sleeping position affect baby's head?
An Ontario hospital says the campaign to prevent sudden infant death syndrome (SIDS) by ensuring that babies sleep on their backs is having an unexpected side effect.
Is my head shape normal?
However, naturally, the normal head shape when viewed from above should look similar to an egg, slightly wider at the back than the front. The ideal is thought to be 20% longer than it is wide and there should be no asymmetry or difference between the left and right sides.
Do all babies get flat heads?
However, it is not always completely preventable. Even by using the sleep positioning described below, some babies will develop flat parts on the back of their heads. A simple way to help prevent your baby from getting a flat head is to change their position in the crib each day.
Do pillows prevent flat head?
Although babies can be completely safe and comfortable in their cribs without any extra items, many companies promote pillows for young babies and newborns. They're often said to help prevent "flat head" syndrome in babies and are used in cots and cribs.
When can you stop worrying about flat head?
When does flat head syndrome go away? Flat head syndrome is most common between the ages of 6 weeks and 2 months old, and almost always resolve completely by age 2, particularly if parents and caregivers regularly work on varying baby's positions when he's awake.