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5 Month Old Baby: Development, Sleep and Milestones

The development of a child up to 1 year can be divided into 2 periods: newborn and infancy. The kid reaches certain heights in physical, mental, and psycho-emotional development at each age stage. The psyche begins to form in a child in the womb. It develops with each month of life after birth and then with each new year.

Parents need to know what is happening with their children at each age stage. This is necessary to choose the right communication and ensure adequate development of your child. It is important to give the baby proper care, safety, and nutrition. Many serious mistakes will lead to unpredictable consequences. We propose to consider in more detail the features of a baby at 5 months.

5 Month Baby Development

A baby at 5 months develops and grows under the motto “I want to move.” His activity at this age has increased significantly compared to previous stages. The child makes a lot of new body movements that expand his view and sensations from the external environment.

The physical and cognitive activity makes a significant contribution to the development of the baby. He conquers new heights previously unattainable due to muscle weakness.

It's The Size of
a Strawberry

Based on length and size of a baby at 10 weeks pregnancy we can compare it to strawberry.

It does not feel like anything yet inside your belly, but structure is there and soon enough it will grow big.

10 Week Baby Size

How Heavy is it?
0.15 oz ~ 4 gr

Bone structure and enlargement of head has made our baby at least to double in weight between week 9 and 10.

Slowly growing baby fetus is now at 4 grams or 0.15 ounces. Keep in mind that every baby weight during pregnancy is slightly different.

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Your Baby is
3.2 CM or 1.25 Inch

It’s hard to measure baby inside your belly during such early development stage.

Overall night is just above one inch or 3 cm. The baby is not measured head to toe yet as it is in round position.

Size week 10

Baby parts development summary

The baby becomes even more physically proportioned by 5 months. He gains sufficient body weight, looks healthier, and is not so helpless. The development of the nervous system continues. The immune system is stabilizing but is still poorly developed. The endocrine system is still immature.

The digestive system continues to improve. The intestines are still highly permeable. The digestive tract gradually becomes ready to digest additional food in addition to milk.

Muscles – Tonic muscles develop morphologically and functionally. The muscles of the trunk mature in this age period. The fibrous composition of skeletal muscles gradually changes. The hypertonicity of the muscles of the lower extremities goes away.

Digestive organsThe volume of the stomach increases. Its mobility and secretion of hydrochloric acid increase. The stomach is still horizontal. The intestine is long. The activity of the liver is functionally insufficient. Funnel-shaped esophagus.

Respiratory systemThe airways (nasal passages, larynx, trachea, bronchi) are still quite narrow. Their mucous membranes are delicate and rich in blood vessels. Diaphragmatic breathing predominates. Its depth gradually increases with the development of the lungs.

Immune systemThe baby receives most of the antibodies along with the mother’s milk. The protective function of the body is imperfect. The immune system reacts to the penetration of viruses and microbes but without the formation of immune memory.

CNS – The volume of the brain is growing. The size of nerve cells increases. New neural connections appear. The parietal cortex of the brain is maturing intensively. The development of intercalary neurons starts. Long associative connections between areas of the cerebral cortex grow.

Cardiovascular systemThe mass of the heart is steadily growing. The vascular network expands. The pulse rate decreases to 110-130 beats per minute. The mass of the bone marrow increases. The congenitally high amount of hemoglobin in the blood gradually decreases.

Your Baby Growth at 5 month

Weight readings can vary significantly if the baby was born prematurely or had a low birth weight initially. The height of 5-month-old babies is also genetically determined. The head circumference of girls of 5 months is 42 cm. These data for boys will be 43 cm.

The girth of the chest is an important indicator of the harmonious and correct growth of the baby. This figure will be equal to 40 cm for girls 5 months. For boys – 41 cm.

5 Month Old Baby Milestones

The child has significantly advanced in its development by 5 months. There were morphological and functional changes in the work of internal organs. The kid reaches a high level of mental, emotional, and physical development.

His skeleton and muscles are getting stronger and his coordination of movements is improving with the growth of physical activity. The mechanisms of growth and development laid down by nature prepare the baby for the future upright posture. The muscles of the trunk, lumbar, and back are strengthened. This will lead to further sitting, crawling, and maintaining vertical balance. Here are examples of the main key points in the development of a child at 5 months.

Approximate reactions Visual perception expands its possibilities. The child begins to recognize people close to him well and react differently to acquaintances and strangers. The baby is already noticeably better oriented in space. Hearing responses are aggravated.

The child is sensitive to a variety of sounds. He distinguishes his mother’s voice well from the rest. The baby reacts violently to positive and negative intonations.

Emotions Emotional responses become more diverse. The baby shows negative emotions in the form of tantrums and crying with discomfort, fear, or pain. They are accompanied by a strong change in facial expressions, muscle tension, and activation of limb mobility.

The child reacts to pleasure, increased interest, a new toy, and positive moments with enthusiastic cooing, laughter, and a smile. The mobility of the legs, arms, and body indicates that the child is broadcasting his emotions.

Social behavior The child is increasingly striving to establish new relationships. He is willing and very interested interacts with children of the same age or much older than himself. Can give or take a toy in hand. The child tries to communicate with his developing speech skills.

The kid loves to spend time with adults, children, and pets. He feels the face of a stranger, touches his clothes, and gets acquainted tactilely and visually. Often makes enthusiastic sounds.

Motor activity 5 months is the time to improve motor skills. The baby during this period perfectly rolls over in any direction from the back or the stomach. He no longer needs help for this. The first successful attempts at crawling occur. The child manages to move forward a certain distance and get the object.

The kid rests well with his feet on the surface in a standing position with support. Some babies begin to show a desire to sit down.

Development of hand skills There is an ability to hold objects in both hands even at the same time. The kid shifts the toy from one hand to another well, carefully examining it. The fingers firmly grasp the object in the hand and manipulate it.

Grasping movements remain “loop-like” with frequent misses. Some complex hand movements are inaccurate, and poorly coordinated due to relative weakness and significant muscle tension.

Development of speech A child at 5 months begins to very actively explore his sounds made with a special intonation. There may be a strong squeal. His practice can take up to 2 weeks. Specific articulatory processes cause the development of active babbling.

The close connection of pronounced sounds with tactile, kinetic, and auditory sensations is being worked out. The baby begins to pronounce spontaneous or imitative sounds for a long time.

Key points in the development of a child of 5 months combine mental, physical, and psycho-emotional achievements. The child actively learns communication skills and practices social behavior. He is increasingly interested in interacting with other living beings.

Visual and auditory reactions are aggravated. The ability to navigate in space increases. The musculoskeletal system is getting stronger and hand skills are improving. The all-around development of a child is impossible without regular communication and close interaction with the external environment.

“The baby should roll over, hold his head well, manipulate objects, and show emotions at 5 months.”

5 Month Old Baby Health

The child’s body is susceptible to viruses and infections due to the imperfection of the immune system. The baby can get sick and illnesses do not always go away without complications. There is a high probability of developing dysbacteriosis, especially if you are already giving complementary foods and elementary standards of sterility are not observed.

Vitamin D intake is prescribed at 5 months. This is a very important component of nutrition, without which calcium is poorly absorbed. Vaccination at 5 months does not include new doses of previously administered vaccines by the prescribed general schedule. The next vaccinations will be in six months.

Monitor the health of the child’s joints and their proper development. Visit an orthopedist, and do an ultrasound of the hip joints if necessary.

Sleeping Schedules at 5 Month

Major shifts in sleep patterns can occur as early as five months of age. This is primarily due to a reduction in daytime sleepiness and an increase in wake time. The kid becomes more interested in knowing the world. This affects his emotional excitability and persistent sleep disturbances.

The daily norm of sleep for a 5-month-old baby is 14.5-15 hours. It takes 8 to 10 hours of this time to sleep at night. For daytime sleep 4.5-5 hours. The sleep schedule during the day can be any that is convenient for you and is more suitable for your child. Most children sleep 3-4 times a day. Sleep duration from 30 minutes to 1.5 hours. The period of wakefulness lasts up to 2 hours.

5 Month Old Sleep

5 Month Old Sleep

A baby’s sleep schedule is always individual. It all depends on the established biorhythms, hereditary predisposition, and the state of health of the child. The shift in sleep patterns is associated with periods of regression. This is a natural process of adaptation to new conditions and a sharp jump in growth and development.

Do not try to put your baby to bed strictly by the clock. Minor deviations from the schedule within 15-30 minutes are quite acceptable. The main thing is to maintain the daily norms of sleep. If the child strongly resists laying, postpone his process for a while. Adapt to baby’s changing biorhythms and use a flexible schedule.

5 Month Old Feeding

Many baby food experts believe that it is advisable to introduce complementary foods only when the baby sits down. The digestive system is considered insufficiently mature before this. The horizontal position of the stomach prevents the proper absorption of heavy food.

Follow the rules for the introduction of complementary foods if your pediatrician has approved its initiation. Do not give more than 1 teaspoon of new food at once, monitor the baby’s reaction, and feed exclusively in an upright position. Do not seek to replace mother’s milk intake with complementary foods. It is still too early for this.

The diet of a 5-month-old baby consists of 5-6 feedings during the day and 1-3 feedings at night. The duration of the meal in the form of breast milk is no more than 15-30 minutes. Artificial feeding should be at intervals of at least 3.5 hours.

5 Month Old Baby Movements

Infant motor skills develop rapidly from 5 months. He actively rolls over from a position on his stomach or back. Crawling skills are purposefully trained and for many children, they are quite successful. The baby can easily reach the object lying in front. It is impossible to practice sitting a child without a good mastery of crawling skills. The muscles of the back are not strong enough yet.

Arm and hand movements become more coordinated. The baby can take an object in one hand and transfer it to the other. The child actively moves his arms and legs, lying on his back with emotional arousal. The child freely rotates his body and turns his head in the direction of interest to him in the arms of an adult.

Safety Around Child

The child intensively adapts to the new conditions of his life for up to 1 year. The development of higher mental functions begins precisely during this period. The baby gains experience in active interaction with the environment. This contact is not always safe. The child cannot protect himself.

The most relevant is to ensure the safety of the environment of the infant during wakefulness with the activation of motor skills. He becomes most interested in everything that is around him. He will no longer lie on his back. Its coups are aimed at expanding the viewing angle. So it increases the area of the study area.

A child of 5 months pulls everything into his mouth through which he gets acquainted with the objects of this world. It is especially important to remove dangerous and small objects from the environment.

2 Month Old Sleep

Toys – Choose your child’s educational toys carefully. Give preference to options without toxic dyes, small parts, magnets, or sharp objects. There should be no easily torn parts that the baby can swallow.

Animals – The child is especially actively drawn to pets at 5 months. Not every breed of dog and cat is socially oriented. It is impossible to predict the reaction of an animal. Communication of animals with the baby should be supervised.

In the carPlace your child in the car seat with the seat belt properly fastened. Do not give the baby anything extraneous in the hands. This can enter his throat while moving, causing suffocation. Block the doors.

Zone of active wakefulnessIt can be a floor, previously covered with a rug or a playpen. Be sure to use a babysitter radio with a camera to see the baby. Remove all dangerous objects at a distance accessible to him.

Bathroom – Never leave your baby unattended in the bath. Even if you use a special circle for independent swimming. The child is too active and may choke while bathing.

Bed – Do not practice conscientious sleep unnecessarily. Teach your baby to fall asleep on his own and sleep in a separate bed. The bed should be with sides that will not allow the child to fall out when turning over.

What To Schedule Next

Be sure to book your 3rd dose of DTap and PCV13 vaccines. They must be introduced at 6 months. Schedule a visit to narrow specialists for a preventive or mandatory examination. The appointment is given by the pediatrician based on the state of health of the child. Mandatory control of an orthopedist, neuropathologist, surgeon, and cardiologist.

Do not forget about the monthly examination by the pediatrician and the control measurement of growth parameters. Make an appointment with your pediatrician in advance.

Pre-register in the kindergarten if there is an urgent need to return to work. An alternative is to hire a private nanny. The specialist must be qualified and certified. Caring for infants requires a large number of skills and abilities, including first aid.

Parents Tips and Development Speed Up

Parents must have unbroken patience and endurance for the correct and harmonious development of the child. Try not to react too harshly to the whims of the child. Act like an adult. Be more tolerant of the problems that arise with your baby. He needs strong parents now.

  • Don’t seat your baby earlySitting down can be dangerous until the psoas and back muscles are strong. It will harm the internal genital organs of the child. Postpone practicing this skill until after crawling.
  • Avoid emotional overexcitementLimit the visits of family and friends in the evening. Correctly organize sleep and wakefulness. Avoid overwork and overexcitation. Regulate your intonations and don’t overdo it with games.
  • Don’t leave your child unattendedDo not leave the child alone in such an intensive phase of the development of the physical activity. His curiosity can lead to unpredictable consequences. A kid can easily harm himself in a matter of minutes.

The development of a 5 month old baby should be comprehensive. The child learns the world, starting from the experience of interaction with its objects. Do your best to make this experience a positive one. Development should include physical exercise and the mental and initial practice of mastering emotional intelligence.

5 Development speed ups at 5 month

  1. Expanding the viewing angle – Arrange excursions around the house, street, and other objects.
  2. Sensory development Develop tactile, thermal, and interconnected auditory perception of an object.
  3. Crawl training – Lay interesting objects around the child, stimulating his desire to crawl towards them.
  4. Communication – Respond with words to the spoken sounds of the baby. Talk like an adult.
  5. Mental load – Show objects different in size, shape, and color, voicing them.

You must be prepared for the fact that the baby is changing with each new month of his life. Adapt to the flexible psyche of the baby and always remain calm. The development of his communication skills, cognitive functions, and physical abilities now depends entirely on the persistence of your patience.

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