Soft spot in infant skull
About the fontanelle | Pregnancy Birth and Baby
About the fontanelle | Pregnancy Birth and Baby beginning of content5-minute read
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What is a fontanelle?
A fontanelle is a ‘soft spot’ of a newborn baby’s skull. It is a unique feature that is important for the normal growth and development of your baby’s brain and skull. Your health team will check your baby’s fontanelles during routine visits.
If you touch the top of your baby’s head you can feel a soft spot in between the bones — this is a fontanelle.
A newborn baby’s skull is made up of sections of bone known as plates that are joined together by fibrous joints called sutures. The sutures provide some flexibility and allow your baby’s head to narrow slightly as it travels through the birth canal. The sutures also enable your baby’s head to grow in the first years of life.
There are 2 fontanelles on your baby’s skull. These are the skin-covered gaps where the skull plates meet. The anterior fontanelle is at the top of your baby’s head, and the posterior fontanelle is located at the back of your baby’s head.
Illustration showing the anterior and posterior (front and back) fontanelles of a baby's skull.When will my baby’s fontanelles close?
The posterior fontanelle usually closes by the time your baby is 2 months old. The anterior fontanelle can close any time between 4 and 26 months of age. Around 1 in every 2 babies will have a closed fontanelle by the time they are 14 months old.
Can I touch my baby’s fontanelles?
Yes, you can gently touch your baby’s fontanelles. If you run your fingers softly along your baby’s head you are can probably feel them. Your doctor will touch your baby’s fontanelles as part of their routine medical examination. There is no need to be concerned or worried about touching your baby’s fontanelles as long as you are gentle.
What does a normal fontanelle look like?
Your baby’s fontanelle should feel soft and flat. If you softly touch a fontanelle, you may at times feel a slight pulsation — this is normal. If a fontanelle changes, or feels different to how it usually does, show your doctor or midwife as it may be a sign that your baby’s health may need to be checked.
Sunken fontanelle
If you notice that your baby’s fontanelles are low or sunken, your baby may be dehydrated.
However, you may notice other signs of dehydration in your baby before their fontanelles becomes sunken.
Other signs of dehydration include:
- having fewer wet nappies
- not feeding well
- loosing fluids from vomiting or diarrhoea
- perspiration (or sweating) in very hot weather
- being less alert or floppy
Bulging fontanelle
A bulging or swollen fontanelle may be a sign of a number of serious but rare conditions including meningitis or encephalitis (infections in the brain), cerebral haemorrhage (bleeding in the brain), hydrocephalus, an abscess or another cause of increased pressure in the brain.
If you think that your baby’s fontanelles are bulging or sunken, seek medical advice immediately.
What if a fontanelle closes too soon?
Your baby’s fontanelles may close early. This can happen for several reasons. Your baby may have hyperthyroidism (high levels of the thyroid hormone) or hyperparathyroidism (high levels of parathyroid hormone). Another cause of early fontanelle closure is a condition known as craniosynostosis. Craniosynostosis occurs when one or more of the fibrous joints (sutures) between the bone plates in a baby’s skull fuse too early, before the brain has finished growing. As the brain continues to grow, it pushes on the skull from the inside but cannot expand into the closed over area. This causes the skull to have an unusual shape.
If you notice that your baby’s fontanelles seem to have closed early, if you can feel a ridge along your baby’s skull, or if you think that your baby’s head has an unusual shape, take your baby to see their GP or paediatrician.
What if a fontanelle doesn’t close?
Your baby’s fontanelles may not close on time for several reasons. Common reasons for delayed fontanelle closure include congenital hypothyroidism (low thyroid hormones from birth), Down syndrome, increased pressure inside the brain, rickets and familial macrocephaly (a genetic tendency to have a large head).
If one or both of your baby’s fontanelles haves not closed by the time they are 2 years old, speak to your GP or paediatrician.
If you have any concerns about your baby’s fontanelles you should make an appointment to see your child health nurse, GP or paediatrician.
Speak to a maternal child health nurse
Call Pregnancy, Birth and Baby to speak to a maternal child health nurse on 1800 882 436 or video call. Available 7am to midnight (AET), 7 days a week.
Sources:
Children’s Health Queensland Hospital and Health Service (Craniosynostosis), American Family Physician (The Abnormal Fontanel), Australian Family Physician (The 6 week check - An opportunity for continuity of care), WA Health (Bulging Anterior Fontanelle), The Royal Children's Hospital Melbourne (Clinical Practice Guidelines: Dehydration)Learn more here about the development and quality assurance of healthdirect content.
Last reviewed: February 2022
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Baby Soft Spot: How to Care for Your Baby’s Head
As you spend hours gazing at your newborn and stroking his face, you’ll no doubt notice a couple of soft spots on his head. These soft spots, called fontanelles, are perfectly normal and actually play an important role in your baby’s development.
Learn more about these soft spots, including how to protect them, when the bones of the skull will harden, and which warning signs to look out for by reading on.
What Are Baby Soft Spots and Where Are They?
All babies are born with two soft spots (fontanelles) on their heads: The larger soft spot (anterior fontanelle) is toward the front of the head, and the smaller soft spot (posterior fontanelle) is toward the back.
These softer areas are made up of immature skull bones that are still forming and expanding as your baby’s brain grows.
Why Do Babies Have Soft Spots?
The soft spots on babies' heads have two main functions:
They make it possible for the bony plates of the skull to compress and overlap as the head passes through the narrow birth canal during a vaginal delivery
They allow a baby’s skull to expand, making room for the rapid brain growth that happens in the first year.
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When Does a Baby's Soft Spot Close or Go Away?
In your baby’s first few months, both soft spots should be open and flat. At about 2 to 3 months of age the soft spot at the back of your baby’s head may close. The soft spot at the front may close around the time your toddler turns 18 months old.
What Happens If You Touch the Soft Spot on Your Baby's Head?
As long as you touch your baby’s soft spots gently — for example, when you’re holding your baby and supporting his head and neck or when you’re washing your baby’s hair — you shouldn’t be afraid of hurting him.
There is a thick and durable membrane just under your baby’s scalp that protects her brain, so gently touching the fontanelles won’t hurt her.
To help ensure your baby’s head is protected, it’s a good idea to remind friends, family members, and caregivers to be careful and gentle with your baby’s head.
What Does It Mean When a Baby's Soft Spot Is Pulsating?
Sometimes it may appear that your baby’s soft spot is pulsating. This is completely normal — blood is pulsing through your baby’s body, and this movement can sometimes be visible where the soft spot is. There’s no need to worry if you see your baby’s soft spot pulsing.
What Causes a Sunken Soft Spot on Your Baby’s Head?
A sunken soft spot may be due to dehydration, which can happen if your baby does not get enough breast milk or formula. Your baby may also be more likely to be dehydrated if she has a fever, has been vomiting, or has diarrhea.
Beyond a sunken soft spot, these are some of the other signs of dehydration:
Fewer wet diapers
Sunken eyes
A dry mouth
Cool skin
Drowsiness
Irritability.
Contact your baby’s healthcare provider right away if you’re concerned your newborn may be dehydrated.
Keep in mind, a sunken soft spot can sometimes occur in babies who are not dehydrated. It’s safest for your baby’s healthcare provider to make a diagnosis.
What Should You Do If Your Baby Hits His Soft Spot?
Contact your baby’s healthcare provider if your baby hits his soft spot.
If you notice swelling/bulging of the soft spot and/or bruising around her eyes or behind her ears, it may be due to a concussion. Call 911 immediately.
Other signs of a head injury or trauma requiring immediate medical attention include:
Nonstop crying
Your baby being unwilling to feed
Vomiting
Seizures
Discharge or blood from ears or nose
Difficulty waking after sleep.
When Should You Be Concerned About Your Baby's Soft Spot?
The lack of soft spots on your baby’s head may be a sign of very rare condition called craniosynostosis, a birth defect in which your baby’s skull bones fuse together earlier than normal, resulting in a misshapen head. Contact your baby’s healthcare provider if
your baby seems to lack soft spots
there are raised, firm edges where the skull plates meet
your baby’s skull shape seems misshapen and is not growing over time.
The Bottom Line
Although it might seem a little odd that your baby would have soft spots on her head, they actually serve two important purposes: to make it easier for your baby to pass through the birth canal during a vaginal delivery, and to ensure your baby’s skull can expand to make room for her growing brain.
By around 18 months, your baby’s fontanelles will have closed. In the meantime, be gentle with your baby’s head when holding her.
If your baby accidentally bumps or hits a soft spot, or if you’re concerned that one of the soft spots may be sunken or injured, contact your child’s healthcare provider right away.
When it comes to the shape of your little one’s head, if you’ve noticed flatter spots, it could be because your little one is spending too much time lying on his back looking the same way. Prolonged pressure on the softer skull bones can flatten out the area. Find out more about flat head syndrome and what you can do to treat or prevent it.
The child fell and hit his head: what to do? | Motherhood
My three-month-old daughter was a real fidget - she already knew how to roll over from her back to her side. But I did not expect such a rush from her. Now, having calmed down, she slept peacefully. "Do you think it'll work out?" - the wife was worried. Of course, I reassured her - and myself at the same time. I will say right away: everything worked out, everything ended well. But I think with horror what is hidden behind the word "bad" in this case. After all, not only in a child, in any of us, the head is the most vulnerable spot. nine0004
The brain - the holy of holies of the body - seems to be firmly protected by the bones of the skull. But it is the cranium that most often causes brain damage during trauma. As you know, between the bones of the skull and the brain there are meninges and a special liquid - cerebrospinal fluid, which additionally protects the brain. During a head impact, the brain continues to move by inertia, that is, it moves inside the cranium, sharply bumping into the bones of the skull. Liquor extinguishes this movement, but not always. And with a severe injury, if there is a fracture of the bones of the skull, fragments of bones can damage the brain. nine0005
Baby Skull is an even more fragile and vulnerable design. Children are much more likely to suffer brain injury from head impact than adults. Especially in the first year of life, when the bones of the skull have not yet fused and are easily displaced upon impact.
As adults, it is our duty to know where danger lies in store for a child. Falling to the floor from the changing table or falling out of the stroller is a "hobby" for babies. Older children master the world, testing it for strength with their own forehead. A young traveler does not even need sharp corners - he will literally fill a bump out of the blue. And it's good if a bump. And when the baby grows up and starts running, it is not known who grabs his head more often - a frightened mother to death or he himself. nine0005
Unfortunately, it is impossible to completely protect a child from injuries. If your child rarely falls - are you trembling over him too much? According to the excellent pediatrician Benjamin Spock, "it will save his bones, but ruin his character."
How can you and I, if not protect the baby, then at least reduce the risk of head injury?
Babies up to a year old
Babies most often roll onto the floor from changing tables, so you need to swaddle your baby not on the table, but, for example, on the sofa. He is lower. Also, to cushion a possible fall, place a rug under the table or next to the sofa. nine0005
Three more simple tips:
- never take your eyes off your baby while swaddling;
- try to hold it with your hand;
- if you need to leave (for a bottle, or pick up the phone, or open the door), take the baby with you. Otherwise, he can at any moment roll over from his back to his stomach (it is better not to think about the consequences of such an acrobatic etude).
You have to watch the baby even when he lies quietly in his crib. However, lies - it's half the battle. As soon as he starts to sit down, keep your eyes peeled. If your fidget has already mastered the art of sitting, urgently get a low, stroller. And necessarily mobile, that is, one in which the child can sit and lie down. It is more difficult for him to get out of such a stroller, and it is safer to fall. nine0005
The kid has grown up
Special socks with "brakes" (these are rubberized inserts in the sole of the sock that reduce slipping) can protect the child from falling in the apartment. They are especially useful in an apartment with a parquet floor. Lay rugs in the places of the baby’s usual routes (but so that they lie tightly and do not slip on the floor). For the first time, wrap sharp corners of furniture, door jambs with some kind of dense matter. Remove chairs and other furniture from windows - this will keep an inquisitive little man from wanting to climb onto the windowsill or, scary to think, open the window. nine0005
But what if...
If an accident happens and the child falls and hits his head, the main thing is not to panic, not to find out who is to blame. All attention to the baby. Your task is to quickly find out how serious the injury is. How to do it?
The mildest injury - contusion of the soft tissues of the head (not to be confused with a contusion of the brain!). In this case, the brain does not suffer in any way. There may be a small abrasion or bump at the site of impact. The child, having sobbed for 10-20 minutes, calms down and behaves as usual. In this case, you can not consult a doctor. nine0005
At concussion of the brain everything is much more serious: there may be a short-term loss of consciousness, vomiting begins (in children under 3 months - repeated), the skin turns pale, cold sweat comes out. The child is lethargic, drowsy, refuses to eat; those who are older and capable of some information about themselves complain of headaches, tinnitus.
An even more severe injury - brain contusion. In this case, immediately after the injury, a long blackout of consciousness is possible (sometimes it is absent for more than an hour). In especially severe cases, respiratory and cardiac disorders occur. nine0005
In case of fracture of the skull , in addition to the general serious condition of the child, there may be an outflow of blood or a clear liquid (liquor) from the nose or ear, bruises form around the eyes (symptom of glasses). It is very important to know that with skull fractures, symptoms do not appear immediately, but several hours after the injury.
Therefore, rule number one - after a bruise (injury) to the head, you must super-attentively monitor the child's condition. Any doubt that "everything is in order" is a reason for immediate medical attention. If there are signs of concussion or brain injury, the doctor is called immediately. nine0005
What can be done
If there is no obvious damage to the bones of the skull, a cloth moistened with cold water or ice in a rag should be applied to the impact site. This will reduce pain, stop tissue swelling and bleeding.
Bleeding can also be stopped in this way - by applying a dense piece of dry matter (tampon) to the wound. If it becomes saturated with blood, put a second one on top of the first tampon. Attention! If bleeding continues after 15 minutes, call your doctor immediately.
After any head injury the child needs rest , but do not let him fall asleep for an hour otherwise you will not understand how bad his condition is. Wake up the baby at night. If he does not answer simple questions, or he has impaired coordination of movements, or vomiting is repeated, call a doctor urgently.
Pay attention to the pupils: their unequal size indicates severe brain damage. If you suspect a serious injury, and the baby fell asleep, do not wait until he wakes up: call a doctor. nine0005
If the child is knocked unconscious by a blow to the head and you have already called an ambulance, lay the child on its side so that the vomit does not get into the airways. If you suspect that, in addition to the brain, the spine has suffered (when falling from a height on the head or on the back), you must turn the child very carefully and so that the body and head are on the same axis: this will help avoid additional injury.
Still, the most important thing that is required of you if your child is injured is to remain calm. Too much depends on the adequacy of your reactions - the health of a small person depends. nine0005
Material provided by the magazine "Family Doctor"
Softness on the skull of a newborn, 8 (eight) letters
Crossword question
Answer for the clue "Softness on the skull of a newborn", 8 (eight) letters:
fontanel
Alternative questions in crossword puzzles for the word spring
Soft, non-ossified area of the skull of a newborn
Spring springing from the ground
In English it is called “fontanelle” because it pulsates
(reduced) spring
French teacher. Nobel Peace Prize (1927, together with L. Kvidde)
Temechko baby
Definition of the word fontanel in dictionaries
Wikipedia The meaning of the word in the Wikipedia dictionary nine0035 Rodnichok is a village in the Balashovsky district of the Saratov region. The administrative center of the Rodnichkovskoye rural settlement.
Dictionary of medical terms The meaning of the word in the dictionary Dictionary of medical terms
non-ossified area of the cranial vault.
New explanatory and derivational dictionary of the Russian language, T. F. Efremova. nine0008 The meaning of the word in the dictionary New explanatory and derivational dictionary of the Russian language, T. F. Efremova.
m. Soft, non-ossified part of the skull of a newborn. m. Decrease to noun: spring (1). Lask. to noun: spring (1).
Examples of the use of the word spring in the literature.
The spring was not large and not a striker, it made its way from the inside of a pine bush not at all impudently. nine0005
It was really hot, for the first time the sky was blue like spring, and the pines gilded by the sun were quietly warming themselves on the mountain above the spring.
Later, after the closure of the fontanelles, headaches, vomiting, as well as various symptoms, the nature of which depends on the location of the obstruction that disrupts the outflow of cerebrospinal fluid, appear.
There may be delirium, agitation, convulsions, tremors, in some cranial nerves are affected, in infants there may be swelling and tension of the fontanelles. nine0005
The story of the death of Icarus took the ship almost half a day, so on the way to Naxos we had to make one more stop to spend the night on an island without a name, on which, fortunately, a spring of fresh water was knocked out from under a rock, and in the bay into which it flowed, several sirens circled in a round dance.