At the end of the year, the first batch of People's Day people have returned to the village to take their places.
Relatives and friends get together, it is very common is the height of the dolls, tall will be exaggerated by all kinds, short... Even the parents themselves are a little bit of a drumming tangle in their hearts.
"Why doesn't this child grow up?"
"Why don't you measure the age of your bones?"
"I heard it's not useless, it's a cheating money?"
？？？ People on both sides were confused.
Toot mom gives everyone a knowledge point of bone age measurement, very comprehensive, dry goods! It is recommended to directly collect!
What is bone age?
In general, human growth and development is manifested in two ways:
1. Physiological age
That is, the age on the IDENTITY card. In other words, how old are you this year.
2. Biological age
That is, bone age, commonly known as "bone age".
The growth rate of bone age is generally about the same as that of age. However, acquired dietary intake, exercise, environmental factors, and psychological status all have a certain impact on bone age.
Therefore, there are many people who have a certain deviation in physiological age and bone age. For example, some 12-year-old children still have a bone age of 10 years old; some 10-year-old children have a bone age of 12 years old.
What is the use of bone age measurement?
Regular bone age measurements are very important for children during growth and development. Through bone age results, doctors can—
Judging development: Bone age can reflect the child's true level of development and physical maturity.
Detection of diseases: can find out whether the child is short, precocious puberty, abnormal sexual development, etc.
Predict future height: Can predict the child's height growth space, how big is still there.
In the pediatric endocrinology clinic, the first medical advice children receive is almost always bone age measurement. The doctor then determines whether the child's growth and development are normal based on bone age.
Based on the results of the examination, the doctor can estimate the child's adult height, which is the final height.
How old is the child to measure bone age?
Children over 3 years of age, if the height is significantly shorter than the same age children, or significantly taller than the same age, indicating abnormal growth and development, the need to measure bone age.
Generally speaking, when the child is 14 or 15 years old, the epiphyseals tend to close, and the space to grow tall is very small.
Therefore, bone age measurement must be done in time for the initiation of puberty (before the age of 9 for girls and 10 years for boys), and height prediction and targeted height management should be carried out in advance. Every year before puberty, the child can grow 2 to 4 cm longer.
Of course, bone age monitoring is not as small as possible.
The baby's height within 2 years of age is basically mid-development, and there is not much meaning in predicting future height. Therefore, bone age measurement is generally not required within 2 years of age.
Children with normal growth and development, take bone age films once a year, and do a good job of continuous monitoring. However, children with older bones are best tested every six months.
These 3 types of children must be tested for bone age as soon as possible
1. Abnormal development
They are short in stature and significantly lower in height than their peers. In particular, the length of birth, underweight, persistent short stature in childhood, and a significant slowdown or acceleration of height growth.
2. Precocious puberty
Before the age of 9, boys have enlarged penises and testicles, followed by vocal changes, protruding laryngeal knots, long beards, pubic hair, armpit hair, etc.; girls develop breasts before the age of 8, followed by pubic hair and armpit hair, or before the age of 10 to come to "big aunt". Children with precocious puberty have advanced bone development and a much shorter growth cycle.
3. Excessive obesity
Obese children, although a little higher than their peers in the short term, because obese children have more body fat, they will produce estrogen, which can accelerate the rapid closure of the epiphyseal.
How is bone age measured?
To find out how tall a child can grow, you have to measure bone age, and to check bone age, you have to take bone age pictures (X-rays).
Bone age films are mostly clapping hands, and they are left-handed claps.
By taking X-rays of the left wrist, doctors can observe the degree of development of the ossification centers of the phalanges, wrist bones, and lower end of the radial ulna in the left palm to determine bone age.
To measure bone age, X-rays should be taken,
Will the radiation be too large?
No.
The hand belongs to the end of the limb, and the bone age film avoids key parts such as the brain, thyroid and gonads, and the amount of radiation is very small, and the damage to the human body is negligible.
Even if the child needs to measure the bone age every six months because of too fast or too slow growth, it will not affect the child's health.
What about bone age results?
Normally, there is no difference in bone age and age between a child of more than 1 year.
Delayed bone age (late maturation): bone age - age < -1 year
Bone age pre-eminence (precocious puberty): bone age - age > 1 year
You can refer to the following table:
If the bone age is advanced or more than 2 years behind, parents should pay attention to it: the child's growth and development may be problematic.
For example, if the child is 11 years old, but the bone age is already 13 years old, it may be precocious puberty. Once the epiphyseals are closed early, there is not much room to grow tall.
If the child is 11 years old and the bone age is only 8 years old, it may be a growth hormone deficiency or thyroid problem, and it is necessary to see an endocrinologist as soon as possible.
The epiphyseals are about to close, can they still grow taller?
If the bone age film shows that the epiphyseal line is about to close, but a small line can be seen, the growth space is only 2 cm.
However, if the bone age is completely closed, it can no longer grow taller.
Many parents think that "children are short now, and when the time comes, they will naturally grow." By the time it was found that the child's bone age had been closed, the opportunity to grow tall had been missed.
There are three peak periods for the child's height development, and if you miss it, it will be too late-
0~3 years old
Babies grow the fastest from birth to about 1 year old, growing about 25 cm. From the age of 1 to 3 years old, the growth rate of height will gradually decline, but it is still in the peak period of development, with an annual growth of about 10 to 15 cm.
3 years old to before puberty
The annual increase is around 6 to 7 cm.
adolescence
Under normal circumstances, boys can grow about 28 to 30 cm tall from puberty to the epiphyseal line completely closed, while girls can increase by 20 to 25 cm.
In the last two "golden periods" of growing tall, parents should pay special attention to the bone age of their children. Early detection and early intervention, the child may also "pull out".
How can I help him grow taller?
We know that height is affected by genetic and environmental influences, although genetics account for the majority, but can not completely determine the child's adult height, through the management of the day after tomorrow, it is also possible to break through the high level of genetic body. Let's talk about how to manage your child's height.
1. Do a good job of height monitoring
Children in the growth and development stage, it is best to measure the height of the child once a month, and record the measured value, after several consecutive measurements, these points can be connected to get the child's growth curve. The growth curve can dynamically and longitudinally observe the child's growth rate, so as to understand the child's recent height growth.
There are also tips when measuring your child's height:
It is recommended to measure the height of the child in the morning or evening, if the time is not fixed, the measurement will be wrong, this is because the child's spine is shortened by gravity after a day of activity, resulting in shorter height at night than in the morning. In addition, in addition to monitoring height once a month, bone age evaluation can not be forgotten, it can more objectively reflect the child's growth and development, generally monitored once a year (puberty is best monitored every six months)!
2. Balanced and comprehensive nutrition
Many parents are concerned, what can I eat to grow taller?
In fact, no food can grow taller after eating, and children's height growth requires balanced and comprehensive nutrition. Children in the growth and development stages should ensure that they consume:
500ml milk
1 egg
50g meat
And on this basis, appropriate additions rich in calcium, zinc, vitamin A, vitamin D and other foods, which are important nutrients to help children grow and develop.
For children with milk allergy, it is recommended to choose deeply hydrolyzed bovine milk protein formula or amino acid formula as a substitute before the age of 2 years; after the age of 2 years, a dairy-free diet can be carried out, but it is necessary to increase the intake of other foods to meet the nutrients needed for growth and development.
Because the absorption rate of each food is different, it is not possible to rely only on a single food to replace the nutrients in milk, but also needs to be paired up for children to eat, often changing types. Although we can't drink sweet milk, a reasonable increase in food intake can still make the body feel better!
3. Reasonable exercise
Exercise is conducive to the metabolism of calcium and phosphorus in the bones and the whole body, and can accelerate the intraosseous deposition of bone minerals, thereby promoting bone growth.
Studies have suggested that growth hormone increases at least 10 minutes of exercise time, and growth hormone secretion peaks between 20 and 30 minutes after exercise begins. If the exercise continues until the child is exhausted, the secretion of growth hormone is suppressed. It can be seen that the longer the exercise, the better the effect, parents and friends should control the exercise time between 30 minutes and 1 hour according to the child's own situation.
4. Ensure sleep time
Growth hormone can promote the proliferation of epiphyseal chondrocytes of long bones, accelerate the growth of bone and cartilage, and thus increase height.
In order to get more growth hormone, it is recommended to prepare your child to fall asleep at 20-21 o'clock at night, and try to ensure that you enter a deep sleep period before 22 o'clock. After 1-2 hours of deep sleep, that is, between 23:00 and 1:00 in the morning, the secretion of growth hormone will gradually enter the peak.
5. Maintain a good mood
Long-term negative emotions will lead to a decrease in the secretion of growth hormone from the pituitary gland, and in addition to shorter height, there will also be abnormal behaviors such as slow intellectual development, hyperactivity, and uncoordinated interpersonal relationships.
When facing their children's bad emotions, parents should fully understand and make correct guidance to help children understand, recognize and control their emotions, and let them be the "masters" of their emotions.
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