What is the standard height of a three-year-old boy?

Infants and young children are the key period of children's growth and development, and their weight and height are the best indicators to reflect children's growth and development. According to the current situation, the three-year-old child is 92 cm tall and weighs 12 kg, which is slightly lower than the average range.

There are developmental abnormalities caused by malnutrition. It is necessary to check the blood routine, liver function, and the secretion of growth hormone and thyroid hormone, and clarify the reasons for the slow growth. It is necessary to strengthen nutritional supplements and participate in outdoor activities to promote growth and development.

Extended data:

1, familial short height:

The reason why such children are short comes from their parents. Generally speaking, the height of children is related to the average height of parents. If parents are particularly short, it is certainly impossible to expect children to grow as tall as trees. To sum up, these children are completely normal except for their height, so their bone age is equal to their actual age.

2. Physical retardation:

Such children are not only short in height, but also usually accompanied by delayed puberty. Since it is a physical problem, it has nothing to do with parents' heredity, so the average height of parents is normal. To sum up, this type of outpatient patients are mostly, and this group of children belongs to the type of late bloomer.

Although the growth rate is a little slow every year, they all sit in the front row at school. However, due to the late puberty, the bone age lags behind the actual age, and the result of catching up slowly every year, when most people's puberty ends and the growth plate heals, this group of children is just in adolescence and still growing, so the final height is no different from that of ordinary adults.

3. Abnormal bone development:

This type of child is not balanced in appearance. Generally speaking, it can be divided into cartilage dysplasia, or long bone dysplasia and so on.

4. Accumulation of metabolites:

Because of the lack of some key enzymes in the body, this type of children's metabolism can't circulate normally, which leads to the accumulation of metabolites around the body. Such as mucopolysaccharide baby.

5. Specific organ system diseases:

Such as allergic rhinitis, asthma, encephalitis, congenital heart disease, nephritis, hepatitis, parasitic infection, benign or malignant tumor, etc. The growth curve of such children can be obviously deviated, usually dating back to the age of initial illness. Try to find out why. If it is a curable disease, the height after treatment will generally keep up with normal people.

6. Endocrine diseases:

Children with endocrine abnormalities must be carefully evaluated to rule out the possibility of tumor diseases. Many endocrine abnormalities should be examined by pituitary magnetic resonance imaging. Because pituitary adenoma can be as small as a few millimeters, we should go to a well-equipped hospital for syndrome examination.

7, fetal intrauterine growth retardation:

There are many reasons for such children's growth retardation during pregnancy, such as maternal malnutrition, iron deficiency anemia, intrauterine infection with pathogenic microorganisms, taking special drugs, fetal genetic defects leading to abnormal development and so on.

8. Short stature in psychological society:

The long-term psychological trauma caused by a bad family environment will affect the growth and development of children, just like physical diseases. The physical examination syndrome of such children is no different from that of normal people, but the growth curve will be biased.

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