Baby growth 1 month
Your baby's growth and development - 1 month old
Your baby's growth and development - 1 month old | Pregnancy Birth and Baby beginning of content8-minute read
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Key facts
- At 1 month, cuddling, sleeping and feeding are all that really matter to your baby.
- The time you spend with them will help their brain grow and develop as they start to experience the world.
- At 1 month, most of what babies do is still caused by reflexes.
- By the end of the first month, most babies can raise their head when you lay them on their stomach, and they will turn their head to one side.
- They will also start to focus with both eyes and should be able to follow a moving object.
My 1 month old
Infant development begins at birth. Initially your baby will grow fast and learn a lot. At 1 month, cuddling, sleeping and feeding are all that really matter to your baby. The time you spend with them will help their brain grow and develop as they start to experience the world.
Your baby will probably be crying a lot. It’s often because they’re hungry or have a dirty nappy, but often babies just cry for no apparent reason. Give them lots of cuddles to comfort them, and remember that the crying will eventually pass.
At 6 to 8 weeks, your baby needs a full health review by a health professional such as child and family health nurse, midwife, GP or paediatrician.
My baby’s growth
Babies grow at different rates. On average, at 1 month they gain between 0.7 to 0.9kg each month and grow 2.5 to 4cm. Their head circumference will increase by about 1.25cm each month.
Babies lose weight right after they are born. Healthy babies usually get back to their birth weight in the first 2 weeks and will then continue to grow. A baby loses up to 10% of their birth weight in the first week and regains this by 2 weeks.
Your baby was weighed at birth and your doctor or maternal child health nurse will plot their growth regularly on a growth chart. Babies come in all different shapes and sizes, and your baby might be large or small. What matters is that they grow consistently over time.
Try not to compare your baby’s weight gain with that of other babies.
Understanding baby growth charts
A growth chart helps you and your doctor keep track of how your baby is growing.
What can my baby do?
Physical Development
At 1 month, most of what babies do is still caused by reflexes. They aren’t thinking about their actions. They will be sucking, swallowing, searching for milk and grasping objects placed in the palm of their hands (although most of the time they’ll keep their hands clenched in tight little fists). They will also step one foot in front of the other if you put their feet on a flat surface. If they fall backward, they will throw their arms and legs out, blink their eyes and breathe faster.
By the end of the first month, most babies can raise their head when you lay them on their stomach, and they will turn their head to one side. As their neck muscles get stronger, they will be able to turn their head and lift it up when they’re in a car seat or carrier.
Cognitive development
They will start to focus with both eyes at 1 month and should be able to follow a moving object with their eyes.
Social development
They will probably prefer looking at a human face to looking at an object. They will gaze deeply into your eyes if you hold them about 45cm away from your face. Most babies can recognise their parents by this age.
1 month old babies love the sound of your voice, but they will get startled if they hear a loud noise.
Emotional Development
Your baby will cry loudly when they are hungry or uncomfortable. When they are happy and content, they might make little gurgling noises. Respond to your baby’s sounds by gurgling and cooing back.
At 1 month, some babies will be learning how to soothe themselves, with a dummy or even by sucking their fingers or thumbs. Helping your baby to suck is a good way to calm them down.
How can I help my baby develop?
Spend time with your baby whenever you can. Looking deep into their eyes and smiling at them will help them to bond and to feel safe and secure.
Read and sing to your baby. Even though they can’t understand, they will enjoy hearing your voice. Music helps to stimulate their senses and will keep them amused. Playing with them will also strengthen your bond.
Help your baby to develop neck strength by putting them on their tummy for 1 to 5 minutes at a time. This is called tummy time. Always keep an eye on your baby during tummy time and always put them to sleep on their back.
Development problem signs
Babies develop at different rates. At 1 month, you will still be learning about your baby and their needs. But talk to your doctor or maternal child health nurse if:
- they aren’t feeding well
- they are regularly sleeping a lot more than 16 hours a day
- they aren’t moving their arms or legs
- they aren’t following your face with their eyes or responding when they see you
- they don’t startle or seem not to be hearing things
- you are worried about your baby’s crying or sleeping
Resources and support
If you are worried or would like to discuss any issues with your baby’s development, speak to your doctor or child health nurse.
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:
The Royal Children's Hospital Melbourne (Clinical Practice Guidelines - Unsettled or crying babies), Australian Government (Developmental milestones and the Early Years Learning Framework and the National Quality Standards), Royal Children's Hospital (Tummy Time for your bay), Starting Blocks (Your child’s Development – birth to 4 months), Australian Breastfeeding Association (What’s normal with weight gains?)Learn more here about the development and quality assurance of healthdirect content.
Last reviewed: December 2022
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Related pages
- Your baby’s growth and development – first 12 months
- How your baby learns - birth to 3 years
- Bonding with your baby
- Understanding baby growth charts
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1-month-old baby: Development, Milestones & Growth
Your 1-month-old is still a sleepy newborn adjusting to the world, but by the end of the month your little one may be much more alert and engaged. Your baby loves to hear your voice and see your face, and even recognizes your smell. Sleeping, eating, and pooping around the clock is your baby's job now. It's exhausting to live on a 1-month-old's unpredictable schedule, but take heart – you're learning your baby's hunger and sleep cues and are on your way to an easier routine.
Life with a 1-month-old can be a magical time full of sweet baby smells and snuggles, but it's also one of the most intense adjustment periods you'll both ever go through. Your baby is learning the basic functions of life: how to sleep, eat, communicate, and move.
You're adjusting, too. You're learning how to soothe your baby; getting into a routine of constant feedings, naps, and diaper changes, and discovering the best way to get your baby to sleep and exactly how they like to be held. You've both come a long way, and you still have a lot of learning to do together.
Your baby's development
Your 1-month-old baby is still very much a newborn – sleeping, eating, and pooping at all hours of the day and night, and not doing much else. That's to be expected. Your goals are to get sleep when you can, ensure your baby is growing appropriately, and continue to learn your baby's eating and sleeping cues so you can help encourage a more consistent baby schedule in the future.
By the end of the month, your baby may seem to wake up to the world, and become much more engaged and alert. Your 1-month-old's movements may seem more coordinated and smoother. Also, your little one will be working on communicating with you through facial expressions and – of course – crying. You'll notice that your 1-month-old is watching your face when you hold them close and listening to your voice. You help develop your baby's brain by talking, singing, reading, and playing – interacting is key to building a healthy foundation for your little one.
1-month-old milestones
Milestones for a 1-month-old vary a lot, especially if your baby was born early. So, keep in mind that there can be a wide range of when your baby will meet milestones. It doesn't necessarily mean that something is wrong if your baby hasn't met a milestone yet, especially at this age. But be sure to attend your baby's doctor visits and stay in touch with your baby's care provider so you can address any concerns early on.
Here are a few of the milestones your 1-month-old baby may reach:
- Facial expressions. Your baby may not be able to talk yet, but that little face sure is telling you a lot. You'll see your baby experimenting more with different facial expressions – pursing their lips, raising their eyebrows, widening or squinting their eyes, and furrowing their brow.
- Smell recognition. This one has been present since birth: Your baby can recognize your scent, and if you're nursing, the unique smell of your breast milk.
- Responding to loud noises. Your baby will respond to loud noises by acting startled or crying, just like older babies. (If you notice that your 1-month-old doesn't react to loud noises, tell your baby's doctor. )
- Mature hearing. Your baby's hearing is fully developed. They can hear everything you can, and will even turn towards familiar voices and sounds. Your baby recognizes your voice and your partner's voice, and may even stop crying to listen when you speak!
- Reflexes. All of the newborn reflexes – including the startle, rooting, sucking, and grasping reflexes – are still going strong. Most newborn reflexes disappear when your baby is about three months old.
- Better eyesight. Your baby's eyesight is continuing to improve. You may notice that your baby's eyes cross occasionally – that's normal. Babies this age enjoy looking at high-contrast patterns, especially black and white, because they're easiest for them to see. Your baby also loves to see your face. When you hold your baby close – about 8 to 12 inches from your face – your baby can focus on it.
- Head control. Your baby's neck muscles are getting stronger, and they may be able to hold their head up for brief moments. When practicing tummy time, your baby may even be able to lift their head and turn it from side to side.
1-month-old weight and length
In only a month, your baby has packed on some serious weight. In fact, from birth to the tender age of 1 month old, babies gain more than 2 pounds on average. Considering that two pounds is more than a quarter of a typical newborn's total body weight, that's an impressive amount.
So how big is a 1-month-old baby? Here are the averages:
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Baby boys
Average weight for a 1-month-old: 9 pounds 15 ounces
Average length for a 1-month-old: 21.5 inches
Baby girls
Average weight for a 1-month-old: 9 pounds 4 ounces
Average length for a 1-month-old: 21 inches
Keep in mind that all babies grow at different rates, and there is a lot of variation in the way 1-month-olds develop. Some babies may struggle with feeding and need a little more time to catch up while others go through rapid growth spurts.
The most important thing you can do to make sure your baby's growth is on track is to attend your baby's 1-month well-baby visit. Your baby's doctor will track their individual growth on a growth chart.
1-month-old feeding
There isn't much difference between newborn feeding and 1-month-old feeding. At 1 month, your baby is still a newborn and needs round-the-clock feeding.
So how much does a 1-month-old eat? If you're breastfeeding, your baby will still nurse about every 2 to 3 hours – 8 to 12 times daily. Many 1-month-olds nurse for around 15 to 20 minutes at a time. However, that's a generalization. Some babies prefer cluster feedings (when they nurse multiple times within a shorter time frame), and some babies may take longer at the breast.
Keep feeding your baby on demand – look for your baby's early hunger cues (like rooting for your breast, smacking their lips, or sucking on their hands) and feed your baby whenever they seem hungry. This can be tough to figure out at first, but eventually you'll be able to easily tell when your baby needs to eat.
If your baby is drinking from a bottle – breast milk or formula – you can expect to feed them about 4 ounces every 3 to 4 hours. It can be better to start with smaller feedings until you determine how much your baby drinks so you don't waste formula or breast milk. If your baby doesn't finish the bottle of formula within an hour, you need to toss it because it could become contaminated. If your baby doesn't finish a bottle of breast milk, you can still give it to them within two hours.
Should you wake your baby up to feed? If your baby is struggling to gain weight or needs extra nutrition for any medical reason, waking to feed may be crucial. But at 1 month old, some babies can sleep for longer stretches of about 4 to 5 hours and don't need to be woken up to eat. If you're wondering, ask your baby's doctor.
The best way to ensure that your baby is getting enough to eat is to monitor their weight gain, which your baby's care provider will do at the well-baby checkup this month. You can also keep an eye on your baby's diapers – look for at least 5 to 6 wet diapers per day.
At first, your breastfed baby may have pooped after every feeding. That will likely slow down – in fact, some breastfed babies only poop every few days or even just once a week. Formula-fed babies should poop at least once a day.
1-month-old sleep
At 1 month old, your baby will sleep anywhere from 14 to 17 hours every 24 hours. For many babies, it works out to 15.5 hours, with 8 to 9 hours of nighttime sleep and 7 hours of daytime sleep.
However, 1-month-olds don't typically sleep many hours in a row. It's normal for babies to have irregular sleep patterns from birth to 3 months. Your baby could catnap for 20 to 30 minutes, or take a longer nap for a couple of hours.
It can be frustrating (and exhausting) when your baby's sleep doesn't follow a predictable pattern, but it will get better. It's too early for your baby to be on a strict schedule, though you can check out these sample baby sleep schedules to get an idea of typical routines for 1-month-olds.
It's not too early to encourage healthy sleep habits. Give your baby a chance to nap frequently, and teach your baby the difference between night and day. During the day, play and interact with your baby as much as you can and keep the house brightly lit. At night, keep your interactions quiet and the lights and noise level low.
You can also start a bedtime routine with your baby that may include bath time, baby massage, singing a special song, rocking, snuggling, and swaddling. A consistent routine will help teach your baby when it's time to sleep.
Your baby's health
It's time for another well-baby checkup! Your baby will see the doctor this month, then again next month for a 2-month checkup. After that, visits will be every 2 months until your baby is a year old.
That may seem like a lot of visits, but they're worth it. Your baby's doctor will make sure they're growing appropriately, address any concerns, and answer your questions.
Here's what you can expect from your baby's 1-month-old checkup:
- A full physical assessment. The doctor will check your baby's entire body and listen to their heartbeat, lungs, and stomach. They'll also check your baby's weight, length, and head circumference and plot it on a growth chart.
- A look at your baby's diaper area. The doctor will check your baby's circumcision site, if applicable, and make sure that your baby's genitals look okay. They'll also check whether your baby is having any issues with diaper rash.
- A discussion about infant safety. The doctor will ensure that you're following recommended guidelines to keep your baby healthy and safe, including starting tummy time and following safe sleep practices.
- Vitamin D drops if you're breastfeeding. It's recommended that you give your breastfed baby vitamin D drops every day starting at birth. Your baby's doctor can give you a dropper to use.
- A hepatitis B vaccine. Your baby may receive a second dose of the hepatitis B vaccine at the 1-month visit. If your baby didn't have the first hepatitis B vaccine already, you can start the series now.
Your baby's doctor may also ask questions about how you're doing at the 1-month checkup to check for symptoms of postpartum depression. Sometimes it can be hard to tell the difference between the baby blues, postpartum depression, and the normal stress and exhaustion of being a new parent. Talk to your baby's doctor or another healthcare professional if you're:
- having feelings of sadness, emptiness, or hopelessness
- having trouble sleeping or concentrating
- feeling overwhelmed
- crying a lot
- having severe mood swings
- having trouble bonding with your baby
- having thoughts of harming yourself or your baby
Your 1-month-old baby: Week by week
Want to learn more about what's happening with your baby this month? Get more details on your 1-month-old's weekly development:
- 4 week old baby
- 5 week old baby
- 6 week old baby
- 7 week old baby
development, height and weight, nutrition
Closer to one month, the child can listen to the voices of others, fix his gaze on stationary objects
Weight and height of a child at 1 month
-
Girls: 46. 1 - 52.2 cm; 2.5 - 4.0 kg.
-
Boys: 46.8 -53.0 cm; 2.6 - 4.2 kg.
Physical development at 1 month
From birth, the baby has a set of unconditioned reflexes, some of which will disappear with age. It is by reflexes that specialists determine the state and development of the child's nervous system.
-
Sucking reflex
Associated with the instinct of nutrition. If you move your finger or nipple around the baby's mouth, he will make movements with his lips that imitate sucking.
The child squeezes and holds the finger placed in his palm.
-
Reflex Moro
Reacting to a loud sound or clap, the baby opens and closes his arms and legs.
-
Search reflex
When stroking the skin in the corner of the mouth or cheek, the baby turns his head towards the stimulus - in search of his mother's breast. Especially pronounced before feeding.
-
Swimming
If you put your baby on his stomach, he will make movements similar to swimming. If you put your palm under the heels, the baby will push off with his feet, as if crawling.
-
Babinski reflex
If you run your fingertip along the outer edge of the baby's sole in the direction from the heel to the toes, they will fan out.
-
Babkin's reflex
The baby turns his head and opens his mouth when pressed on his palm.
When you hold the baby in your arms or lay it on your tummy, he tries to keep his head. Lively interested in objects and persons, follows them with his eyes.
Psychoemotional development in 1 month
The child learns to smile, joyfully reacts to the appearance of his mother and affectionate treatment.
The development of the child's speech per month
The baby begins to make the first guttural sounds, but he still informs others about his needs with loud crying.
Nutrition for a 1 month old baby
The best food for babies is breast milk. By the month, the feeding regimen is just beginning to improve, so do not be surprised if the child eats for a long time, and the breaks between feedings are irregular.
On average, monthly babies eat every 2.5-3.5 hours, but sometimes more often. To improve breastfeeding, continue to feed your baby on demand and let him stay at the breast for as long as he needs to. After 1-2 months, the endless series of feedings will end and the baby will develop its own regimen.
How much does a 1 month old baby sleep?
In the first 2 months of life, the baby sleeps almost the same as he did when he was still in the womb. Until the biorhythms are formed, the baby lives according to his own special rhythm. He has no sleep habits, the child may demand that his mother be around at this time, smelling her and warm, he feels safe.
The duration of each sleep can vary from 30 minutes to 4 hours, and the total amount of sleep per day is 15-18 hours. Sleep inversion (day/night confusion) is normal at this age. 1
Features of the stool of a newborn
Immediately after birth, the baby begins to suckle at the breast and receives colostrum, which has a laxative effect. This helps to get rid of the first stool of the newborn - meconium. Meconium is black, sticky, tar-like stool, odorless. Normally, meconium passes in the first 48 hours.
If the mother is breastfeeding, the baby's stools gradually change color. "Transitional stool" greenish in color and liquid consistency. Already by the 5th day of life, the feces become yellow, granular inclusions may be present in it.
In a breastfed baby, stool color may vary from yellow to yellow-green or yellow-brown. Occasionally it can be green or frothy - all this is a variant of the norm. 2
For the first 1.5–2 months, the baby's intestines are emptied 3–4 times a day and more often 2 . In formula-fed babies, stools are usually a little less frequent - 3-4 times a day, and may have a brownish tint.
If the stool is less than 1-2 times a day with any type of feeding and is accompanied by bloating, anxiety, decreased appetite, then this is considered constipation and is a reason to contact the pediatrician.
You should also be alerted by the following signs: the stool has a specific unpleasant odor or an admixture of mucus, greenery, blood, it is watery or greasy, during defecation the child cries, twitches its legs. 3
Why does a newborn cry?
Crying is a signal of childish displeasure and an intense demand for help as soon as possible. The baby may scream for various reasons: to report physical stress, hunger or indigestion, emotional distress, for example, grief that his mother left and he was left alone in the room.
Research at the National Institutes of Health has shown that from birth, children differ in their temperament. If, for example, they are touched with a cold object, some begin to scream loudly, while others calmly move away by three to five centimeters. 4
Parents get very worried when they can't calm the baby, but the main rule is to calm down yourself first. Then take the baby in your arms, shake, kiss, offer a breast or give a pacifier. A little patience and your child will calm down.
Monthly baby health
According to various studies, from 3 to 40% 5 parents experience infantile colic. Colic begins to disturb the baby from about 2-3 weeks of life and usually disappears without a trace by 3-4 months. As a rule, colic occurs at the same time, in the afternoon or evening, characterized by bouts of prolonged crying for no apparent reason. Be patient: during attacks, carry the baby in your arms or in a sling, lay skin to skin on your stomach, try clockwise massage of the tummy. If these methods do not work, contact your pediatrician, if the diagnosis is confirmed, he may advise drugs that will help alleviate the baby's condition.
Medical examination of a child at 1 month includes examination by a pediatrician, visits to such specialists as a neurologist, pediatric surgeon, ophthalmologist and even a pediatric dentist. You will also need to make a number of ultrasound examinations for the child: heart, abdominal organs, kidneys, hip joints and brain (neurosonography).
2nd hepatitis B vaccination.
1. Anna Ostroverkhova, pediatric neurologist. Baby sleep in the first four months of life. Retrieved: 25 October 2021.
2. La Leche League International. Dysbacteriosis in an infant or divination by the contents of diapers. Retrieved: 25 October 2021.
3. Antonina Chubarova, Associate Professor of the Department of Children's Diseases No. 2 of the Russian State Medical University, Ph.D. Child's stool: norm and pathology. Retrieved: 25 October 2021.
4. Albert Ellis. How to raise an emotionally healthy child. California, 1978, page 5.
5. Food Allergy, 2012. Food Protein-Induced Enterocolitis Syndrome, Food Protein-Induced Enteropathy, Proctocolitis, and Infantile Colic. Retrieved: 25 October 2021.
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Weight and height of a child by months up to a year • Table of weight norms for babies up to a year
A young mother often worries about whether her baby is developing correctly. And the weight of the child is one of the “sick” questions that often comes up on the playground.
Undoubtedly, how much a newborn is gaining weight is really important to know. But remember that the height and weight of the child are individual indicators. And they may not always fit into beautiful statistics. Although the approximate norm for the weight of a newborn is calculated based on general values. Doctors who carry out regular weighing of a newborn also have their own guidelines.
The table below shows the height and weight of the newborn by month. The figures take into account statistical data and recommendations of pediatricians (the discrepancy, by the way, is only 3%).
Child's age, months | Boy, weight, g | Boy, height, cm | Girl, weight, g | Girl, height, cm |
---|---|---|---|---|
Newborn | 3 600 | 50 | 3400 | 49.5 |
1 month | 4 450 | 54.5 | 4 150 | 53.5 |
2 month | 5 250 | 58 | 4 900 | 56.8 |
3 month | 6050 | 61 | 5 500 | 59. 3 |
4 month | 6 700 | 63 | 6 150 | 61.5 |
5 month | 7 300 | 65 | 6 650 | 63.4 |
6 month | 7 900 | 67 | 7 200 | 65.3 |
7 month | 8 400 | 68.7 | 7 700 | 66.9 |
8 month | 8 850 | 70.3 | 8 100 | 68.4 |
9 month | 9 250 | 71.7 | 8 500 | 70 |
10 month | 9 650 | 73 | 8 850 | 71. 3 |
11 month | 10,000 | 74.3 | 9 200 | 72.6 |
12 month | 10 300 | 75.5 | 9 500 | 73.8 |
To use the table, you should know how to weigh a newborn correctly. Before turning on the scales, you need to remove all foreign objects from the bowl, otherwise you will get distorted data. Although you can leave a diaper on it and then press the "Tara" button to reset the result. It is necessary to put the baby in the scales at rest in order to fix the exact numbers, which can then be compared with the “ideal”.
Modern electronic scales for weighing newborns are proactive. A smart device “knows” the weight of a healthy baby in advance and compares the norm with the result. Just wait a few seconds and you will see the result.