Within the standard range of two-month baby development, newborn babies develop rapidly and grow every day after birth. Weight and length increase rapidly, and every day is different. Let's look at the standard range of two-month baby development.

The standard range of two-month infant development is 1. Physical standard: Weight: The average weight of male baby is about 5.60 kg, and the normal range is 4.3-7. 1. The average weight of baby girls is about 5. 10 kg, and the normal range is 3.9-6.6. The weight of artificially fed infants increases rapidly, which can increase by about 1.5 kg, or even higher.

Length: The average height of a baby boy is about 58.5cm, and the normal range is 54.4-62.4. The average height of a baby girl is about 56.8 cm, and the normal range is 53-6 1. 1. There are individual differences in the growth of height, but it is not as significant as weight, and the difference is relatively small.

Head circumference: the average head circumference of a baby boy is about 39.6 cm, and that of a baby girl is about 38.6 cm. Head circumference is a direct sign of brain development, which is related to and affects the baby's future intellectual development. Development law: weight: the baby's weight increases rapidly in the first half of life, especially for babies from one month to two months, with an average of 200 ~ 300 grams per week. It can increase by 500 ~ 1000 grams on average in January.

Height: this month, the baby's height is growing faster, and it can grow 3 ~ 4 cm a month. The baby's height growth this month is not affected by heredity.

Head circumference: The baby's head circumference can reach 36 cm this month. The average monthly growth in the first half of the year was 2 cm, but the actual average monthly growth was uneven.

Front fontanel: The size of the baby's front fontanel is not much different from that of the newborn this month. The connecting line is about 1.5 ~ 2.0 cm, and there are individual differences in the size of each baby's fontanel. It is not more than 3.0 cm and not less than 1.0 cm, which is normal.

How far can a two-month-old baby see?

1 month-old baby can see clearly the objects within the range of 15-30 cm, and can see the objects. By 2 months, the baby's line of sight has not changed much, but the phenomenon of visual concentration is becoming more and more obvious, and he likes to see moving objects and familiar adult faces. The following are the specific visual development characteristics of a 2-month-old baby.

1, eye contact takes longer.

Compared with the fleeting eye contact in the first month, the baby's eyes can look at you for as long as 10 or even longer in the second month. 1 month baby will only scan your face with his eyes, but in the second month, he will start to study the details of your face, be very interested in your facial expression, and even start to imitate your expression.

2. Eyes and head will move together.

In the second month, when you walk away, the baby's eyes will follow you. 1 month, the baby's eyes and head are out of sync. Now the baby's eyes can move freely and the head can keep up with the eye movements. Now he can follow your face or toys that move left and right better with his eyes, and sometimes he can even turn 180.

3, the line of sight is clearer

At 1 month, the baby is almost not interested in the world that he can't touch, because he can't see clearly. This month, the scene in his eyes is much clearer and the scope of concentration has expanded. I'm interested in other things in the room. I like to study adult faces for a while, then turn my eyes to other things in the background, occasionally stay somewhere, and finally turn back to see adult faces.

4. I like to see things that attract attention.

1 month-old babies prefer black and white toys to colored ones; They prefer patterns with strong contrast between light and shade to soft colors mixed together. Two-month-old babies are selective about colors. They don't like artificial patterns and beautifully designed wallpaper, but prefer natural colors, such as bright flowers, red leaves and yellow leaves in autumn and so on. Parents can take their babies outdoors to let them feel the natural scenery and broaden their horizons.

The standard range of two-month infant development is 2 1. During this period, the height of the baby boy can reach 52.2~65.7 cm, and the weight is much higher than that of the newborn, reaching 33.94~7.97 kg. For female babies, the value is relatively small, and the height is 5 1. 1 ~ 60.

2. The baby's movements are much more than before, so he can smile with his mother and see things clearly at close range. Therefore, colorful plush toys or red balloons should be hung in front of the baby's bed and moved in time. This method can effectively help the baby's vision to develop well.

3. If you feed your baby with your mother's milk in your life, your mother should eat more foods containing vitamins for three meals a day, and cross-eat lean meat, eggs and fish, adopt some good cooking methods, try to avoid eating those foods that are particularly oily outside, and at the same time reduce the purchase of fast food products in supermarkets, because additives must be added to these ingredients, which will easily affect your health.

2-month-old infant development index

If a two-month-old baby grows smoothly, he can gain 30 grams a day. However, the growth rate of babies is closely related to the level of development. Baby's face becomes flat, nose is wide, face is smooth, skin is white and tender, shoulders and hips are narrow, neck is short, chest and abdomen are bulging, arms and legs are round.

Always bend over and make fists with small hands. When the baby lies flat, the body posture is symmetrical. When lying on your stomach, you can look around with your head up. The lower collar can leave the bed for 5 to 7 cm, and the head-up time can last 1 to 2 seconds. Compared with the first month, the head will not lean forward immediately. If you sit on your shoulders, your head will lean forward. If you hold your chest out and abdomen in, your head can be as high as your torso.

Two-month-old babies occasionally pronounce vowels similar to "A" and "O", and sometimes grunt or beep. If his parents talk to him, he will also concentrate. If parents raise their voices or slow down, the baby may smile.

In addition, the baby can see objects harmoniously and distinguish colors, but not shades. Within 90 degrees, the eyeball can move with the object. When an object approaches the eyes quickly, there will be protective reflexes such as blinking, and look at the small hand for more than 5 seconds. Very sensitive to sound, no matter to familiar or unfamiliar sound, will make different reactions.

Adults can talk to the baby softly, or play some soft music and make sounds in different directions, and the baby will turn his head to the sound source.

Two-month-old baby has three fingers: fingers can open and close by themselves, play on the chest and suck the thumb.

Lower limbs: when the baby is in prone position for 2 months, the lower limbs will kick alternately.

Small moves: look at small hands; Passive grasping of hands; Grasp; Insist on "going"; practice

Big move: look up; Turn your head and practice; Born to "crawl"

Exercise: In this month, many movements of the baby's body are still reflective, such as taking a defensive posture every time he turns his head.

Vision: At this time, children still can't see clearly the objects beyond 30cm, but they can pay attention to the objects within 30cm.

Hearing: the baby likes human voice, and likes the mother's voice best.

Language: imitate facial movements; Make the pronunciation laugh, say "ah, ah, ah, ah" to yourself, and pronounce vowels.

Socialization: This month, children will spend more time observing people around them and listening to their conversations every day. There will also be a preference for taking care of relatives, and people who take care of their babies for a long time will be closer to their babies.

Emotion: when the baby is in a good mood, make all kinds of facial expressions at him, so that the baby can gradually learn to imitate facial movements or smile.

Cognition: visual concentration; Audio-visual orientation; Smell and taste training. By about 2 months, due to the increase of audio-visual contact, audio-visual contact has the ability to distinguish * * * *, and the baby will show his preference for a certain picture and stare at the favorite wall chart happily.

Independence: Babies in this period have started to eat their fingers. Parents should not stop it immediately, but analyze the reasons for eating their hands and guide them.

At this stage, the interval between babies' breastfeeding is longer than last month, and life begins to be regular. They will defecate regularly in the morning and sleep longer at night, gradually approaching the law of day and night.

2-month-old baby weight standard range

For babies born for two months, the average weight of male babies is 3.94 ~ 7.97kg, and that of female babies is 3.72 ~ 7.46kg ... If the baby is born for two months, it is normal for the weight to fluctuate within these two ranges. If the baby's weight is not within these two ranges, then there is something wrong with the baby's weight, either too light or too heavy, which is not good for the baby.

In fact, after the baby is born, the growth and development is rapid. Infant is the fastest growing period in life. However, it should be noted that the baby may lose weight within 10 days after birth, which is caused by the baby's inadaptability to the external environment and insufficient nutrition intake. However, if the baby's weight still drops after more than 10 days, then there may be a problem and it is necessary to find out the reason in time.

Generally speaking, when a baby reaches two months, his weight will increase a lot compared with that at one month. At this time, the baby has completely adapted to the external environment, and breastfeeding will gradually increase. The baby's intake of nutrients is sufficient, and the baby can grow normally and grow very fast.