Today I will share with you the knowledge of children\’s growth and development standards. It will also explain what the standards for children\’s development at each stage are. If it happens to solve the problem you are facing now, don\’t Forget about following this site, start now!
Contents of this article
- What are the standards for children’s development at each stage
- What are the growth and development standards for newborns
- China Children’s Growth and Development Reference Standard
1. What are the standards for a child’s development at each stage
Children\’s growth and development is a very important process and requires careful care from parents. Growth and development are inseparable. Development is based on growth, and changes in growth reflect the maturity of organs and tissue systems.
Every age of a child has different characteristics, both physiologically and anatomically. According to the different characteristics of each stage, it can be roughly divided into the following stages. But because growth and development is a continuous process, the divisions between each stage are not so strict, and the connections between each different stage are relatively close.
The embryonic development period begins when the sperm and egg meet and combine, until the eighth week. During this period, the embryo\’s organs, tissues, and systems will rapidly differentiate and develop and initially assume a human shape. This stage is a critical period for the development of the fetus. If the normal growth and development of the fetus is hindered by unfavorable factors from the outside or from within itself, the child may have congenital malformations.
From the 8th week of fertilized egg formation until birth, this stage becomes the fetal period. At this stage, the fetus\’s body organs will gradually grow up, its development will gradually approach maturity, and its growth and development will be faster.
3. The infancy period starts from the birth of the child and ends when the child turns one year old. This period is called the infancy period, which can also be called the infant period. At this stage, children grow and develop the fastest, so they need to supplement enough calories and nutrients, especially attention to meet their protein needs, which can be obtained from milk. Compared with the time of birth, the child\’s height will increase by half in just one year. The child\’s weight will increase to about twice what it was at birth, and the child\’s brain will also develop rapidly during this stage.. By the time they are one year old, your child has learned to sit up, crawl, and begins to learn how to walk. The development process of children\’s movements can be roughly summarized in the following two sentences: lift two, turn four, turn six, and then sit. He can walk by rolling around and crawling around.
4. Early Childhood The period between the child\’s first birthday and the child\’s less than three years old is called the early childhood period. Compared with previous periods, children\’s growth and development has slowed down, especially their physical development. At this stage, the child\’s bregma is completely closed and the baby teeth are all erupted. The growth and development of the child\’s nervous system also begins to slow down. At this time, the child\’s brain is already four-fifths the size of an adult. The child\’s range of activities is wider than before, and he is exposed to more things around him. Therefore, his intellectual development will be better than before, and his language ability, thinking ability and adaptability will gradually increase.
5. The period from when a child enters elementary school (usually six or seven years old) to when the child enters adolescence is called school age. Expect. Generally speaking, boys enter puberty at the age of thirteen and girls at the age of twelve. During this period of time, the child\’s growth and development rate is basically stable, and his physical development is stable. Except for the reproductive organs, the development level of other organs is close to that of an adult. The shape of the brain is basically the same as that of an adult, and intelligence has been further improved. Children\’s control, understanding, analysis and comprehensive abilities are also gradually getting better. At this time, the development of the child\’s lymphatic system is at its highest point. Generally, by the time a child reaches the age of twelve, all deciduous teeth have been lost, and all permanent teeth except the third molars have also grown in.
This process is continuous, but different stages have their own characteristics and the speed is different. In general, speed is affected by age. Taking physical development as an example, the younger the child, the faster the growth rate. After the child reaches one year old, the growth and development rate will gradually tend to be stable, but it will accelerate rapidly after entering puberty.
Each organ in the body develops at different speeds, some are fast and some are slow, and the time they start to develop is also inconsistent. The nervous system develops very quickly at first, but then gradually slows down; while the reproductive system begins to develop relatively late; the lymphatic system develops very quickly at first, and then shrinks; when children are younger, subcutaneous fat develops faster; Under normal circumstances, when children enter school age, muscle tissue development speeds up.
Generally, growth and development proceeds in the order from top to bottom, left to right, low-level to high-level, simple to complex.
Children’s growth and development are within a certain range.It will be affected by congenital factors and acquired factors, so the gap between children at the same stage may be relatively large.
If you like me, follow me and share knowledge about pregnancy, childbirth and parenting every day. I am a mother who works in medicine. I am good at learning, willing to share, and scientific. We grow together on the road of parenting, let us raise children scientifically together.
2. What are the growth and development standards for newborns
Children’s Growth and development is a very important process that requires careful care from parents. Growth and development are inseparable. Development is based on growth, and changes in growth reflect the maturity of organs and tissue systems.
Every age of a child has different characteristics, both physiologically and anatomically. According to the different characteristics of each stage, it can be roughly divided into the following stages. But because growth and development is a continuous process, the divisions between each stage are not so strict, and the connections between each different stage are relatively close.
The embryonic development period begins when the sperm and egg meet and combine, until the eighth week. During this period, the embryo\’s organs, tissues, and systems will rapidly differentiate and develop and initially assume a human shape. This stage is a critical period for the development of the fetus. If the normal growth and development of the fetus is hindered by unfavorable factors from the outside or from within itself, the child may have congenital malformations.
From the 8th week of fertilized egg formation until birth, this stage becomes the fetal period. At this stage, the fetus\’s body organs will gradually grow up, its development will gradually approach maturity, and its growth and development will be faster.
3. The infancy period starts from the birth of the child and ends when the child turns one year old. This period is called the infancy period, which can also be called the infant period. At this stage, children grow and develop the fastest, so they need to supplement enough calories and nutrients, especially attention to meet their protein needs, which can be obtained from milk. Compared with the time of birth, the child\’s height will increase by half in just one year. The weight will increase to about twice what it was at birth, and the child\’s brain will also develop rapidly during this period. By the time they are one year old, your child has learned to sit up, crawl, and begins to learn how to walk. The development process of children\’s movements can be roughly summarized in the following two sentences: lift two, turn four, turn six, and then sit. He can walk by rolling around and crawling around.
4. In early childhood, the period between the child\’s one year old and the child\’s under three years oldThe time is called infancy. Compared with previous periods, children\’s growth and development has slowed down, especially their physical development. At this stage, the child\’s bregma is completely closed and the baby teeth are all erupted. The growth and development of the child\’s nervous system also begins to slow down. At this time, the child\’s brain is already four-fifths the size of an adult. The child\’s range of activities is wider than before, and he is exposed to more things around him. Therefore, his intellectual development will be better than before, and his language ability, thinking ability and adaptability will gradually increase.
5. The period from when a child enters elementary school (usually six or seven years old) to when the child enters adolescence is called school age. Expect. Generally speaking, boys enter puberty at the age of thirteen and girls at the age of twelve. During this period of time, the child\’s growth and development rate is basically stable, and his physical development is stable. Except for the reproductive organs, the development level of other organs is close to that of an adult. The shape of the brain is basically the same as that of an adult, and intelligence has been further improved. Children\’s control, understanding, analysis and comprehensive abilities are also gradually getting better. At this time, the development of the child\’s lymphatic system is at its highest point. Generally, by the time a child reaches the age of twelve, all deciduous teeth have been lost, and all permanent teeth except the third molars have also grown in.
This process is continuous, but different stages have their own characteristics and the speed is different. In general, speed is affected by age. Taking physical development as an example, the younger the child, the faster the growth rate. After the child reaches one year old, the growth and development rate will gradually tend to be stable, but it will accelerate rapidly after entering puberty.
Each organ in the body develops at different speeds, some are fast and some are slow, and the time they start to develop is also inconsistent. The nervous system develops very quickly at first, but then gradually slows down; while the reproductive system begins to develop relatively late; the lymphatic system develops very quickly at first, and then shrinks; when children are younger, subcutaneous fat develops faster; Under normal circumstances, when children enter school age, muscle tissue development speeds up.
Generally, growth and development proceeds in the order from top to bottom, left to right, low-level to high-level, simple to complex.
Children’s growth and development will be affected by innate and acquired factors within a certain range, so the gap between children at the same stage may vary. bigger.
If you like me, follow me and share knowledge about pregnancy, childbirth and parenting every day. I am a mother who works in medicine. I am good at learning, willing to share, and scientific. On the road to parenting, IWe grow up together, let us raise children scientifically together.
3. Reference standards for growth and development of Chinese children
Baby in various The main developmental observation indicators at each stage include: height, weight, and head circumference. There are different development standards at different stages.
The average height (length) of a baby is 50cm at birth, approximately 75cm at 1 year old, and 86cm at 2 years old, but depending on the growth environment There may be certain differences with genetics. From 2 years old until before puberty, it can be roughly equal to age × 7 + 75cm, but there will be differences between boys and girls, and between the same sex, as long as the height is not too short or the growth is too fast.
The weight of a baby born at full term is generally 3~4kg. The weight of a male baby less than 6 months old = weight at birth + age in months × 0.7kg. The weight of a male baby between 7 and 12 months = 6kg + age in months × 0.25kg, and the weight before puberty from 2 years old = age × 2 + 8kg.
The average head circumference at birth is about 32-34cm. By the time one year old, the head circumference can be equal to the chest circumference, which is usually 46cm. At the age of two, it is usually 48cm. At 54-58cm, it reaches the head circumference of an adult. Head circumference is affected by genetic factors of the parents. If one parent has a big head, the baby may also have a big head.
Each indicator will have certain individual differences. As long as the gap between the baby and his peers is not very big, there is no need to worry too much. If you find that your baby\’s growth and development is delayed or that his head is too large or too small, you should take your baby to the hospital for examination and treatment in time.
OK, this article ends here, I hope it will be helpful to everyone.
