What are the developmental standards for infants in three months?

The development standards of babies vary from person to person, and parents cannot generalize. Moreover, the development standards of baby girls and baby boys are different. Not only should the height and weight of their babies be stabilized at a qualified value, but parents should also guide them to do some actions, such as asking them to kick things to exercise their limb coordination. Since their hearing has gradually become stronger, they can listen to some relaxing songs. So what are the development standards for babies in three months?

(1) Weight: A 3-month-old boy can weigh up to 6.03 kg, and a girl can weigh up to 5.48 kg, with an increase of 25 to 30 grams per day.

(2) Height: Boys are about 60.30 cm and girls are about 58.99 cm. Since weight increases faster than height, children are fatter.

(3) Head circumference: The average head circumference of male babies is 39.84 cm, and the average head circumference of female babies is 38.67 cm.

(4) Chest circumference: The average chest circumference of male babies is 40.10 cm, and the average chest circumference of female babies is 38.76 cm.

(5) Sitting height: The average sitting height of male babies is 40.00 cm, and the average sitting height of female babies is 39.05 cm.

(6) Action: When a child is lying on his back, the adult can gently pull his hand so that his head can move slightly on its own and not tilt back completely. His hands gradually loosened from clenched fists. If he is given a small toy, he may grasp it unconsciously for a moment, and when he is fed, he will immediately make sucking movements. At this time, he would kick things with his little feet.

(7) Hearing: As the baby grows older, his hearing ability gradually improves. By 3 months old, the baby's hearing has developed significantly. After hearing a sound, he can turn his head in the direction of the sound and show great interest. When adults talk to him, he will make sounds to show response. Therefore, in daily life, we should talk to our children more and let them listen to some relaxing and cheerful music appropriately, which will be beneficial to their auditory development. It is also beneficial to children's language development.

(8) Language: When someone teases the child, he becomes very happy, laughs, and can make sounds like “ah” and “ya”. If a baby gets angry, his crying will be much louder than usual. These special languages ​​are a way for children to communicate their emotions with adults, and also a way for children to express their will. Parents should respond to this expression in a timely manner.

(9) Sensation: When the child hears someone talking to him or hears a special sound, he will listen carefully, make cooing sounds in response, and follow people walking around with his eyes. If the child still cannot smile, has dull eyes, and does not respond to sounds behind him when he is 2 months old, you should check whether the child's intelligence, vision or hearing are developing normally.

(10) Sleep: Babies in their third month sleep less than they did in the previous month, generally about 18 hours. Babies usually sleep 3 to 4 times during the day, each time for 1.5 to 2 hours, and 10 to 12 hours at night. After waking up from a nap during the day, you can continue to be active for 1.5 to 2 hours.

The above article tells us in detail what the development standards of a three-month-old baby are, so parents should pay special attention to their sleep quality, because adequate sleep is very critical during the growth process. If they don’t sleep well, it will affect their physical health.