Young mothers often worry about how much their baby meets the standards. The reason for this concern very often arises after the first visit to the clinic, where the inexperienced mother is told that her baby is too little or weighs a lot, does not gain weight or does not grow at all. What are the norms of weight and height of boys and will be discussed in this article.
Normal weight of a newborn boy
We will discuss right away that the normal weight of a newborn, even a boy, even a girl, is a very relative concept. Too many factors affect the weight with which the baby will be born. Here, the heredity, the nutrition of the mother, and the period of pregnancy on which the child was born are also important. At birth, the average weight of boys varies from 2500 to 4,500 grams, and height - 45-56 cm. Also in the maternity hospital calculate the Quetelet index - the ratio of weight and height of newborn boys and girls, which normally ranges from 60 to 70 units. During the first days after the birth of a child loses up to 6% of its weight. Weight loss is associated with changes in the metabolism of the baby, an increase in his motor activity. After a few days weight loss stops, and the baby begins to actively grow.
1. First month:
- set of weight - 500-600 g;
- increment - 2-3 cm;
- changing the size of the head circumference by 1.5 cm.
2. Second month:
- set of weight - 700-800 g;
- increment - 2-3 cm;
- changing the size of the circumference of the head by 1-1.5 cm.
3. The third month:
- weight gain - 800 g;
- the gain is 2-2.5 cm;
- changing the size of the circumference of the head by 1-1.5 cm.
4. Fourth month:
- set of weight - 700-750 g;
- the gain is 2-2.5 cm;
- the circumference of the head changes insignificantly or does not change at all.
5. Fifth month:
- set of weight - 650-700 g;
- the gain is 1.5-2 cm.
6. The sixth month:
- weight gain - 600-650 g;
- the gain is 1.5-2 cm;
- the thorax in the circle becomes larger than the circumference of the head.
7. The seventh month:
- set weight - 550-600 g;
- the gain is 1.5-2 cm.
8. Eighth month:
- set weight - 500-550 g;
- the gain is 1.5-2 cm.
9. Ninth month:
- set of weight - 400-500 g;
- the gain is 2 cm.
10. Tenth month:
- set weight - 400-450 g;
- the gain is 2 cm.
11. Eleventh month:
- weight gain of 350-400 g;
- increment of 1.5-2 cm.
12. The twelfth month:
- set of weight in comparison with the birth is 3 times;
- an increase in growth in comparison with birth by 20-25 cm.
These norms of weight gain and growth are also quite relative, because most often the child grows jumpy. In order to make sure that the baby is all right, my mother should answer for herself on several questions:
- Often the child is applied to the chest?
- How often does the child defecate? Is the urine pure and has a pale yellow color?
- Are the eyes bright and shiny?
- Is the child's skin healthy? Do babies grow nails?
- Is the child active and moving vigorously?
- Is the child's psycho-physical development consistent with the norms?
- Most of the time the child is in a good mood?
- Are the rest periods for the child followed by periods of activity?
Positive answers to all these questions indicate that the child is developing normally. A few negative answers should be an occasion for consultation with a doctor.
Boys weight table
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Using centile tables of weight (Table 1) and growth (Table 2) for boys, it is possible to determine how much the child corresponds to the age norm. If the child's parameters are included in the column "very low" or "very high", parents should take him to a doctor for advice, because this may indicate a pathology in his development, for example, problems in the endocrine system.