Stages of development

Weights and height of the baby, boy and girl


He weight and height of babies say a lot about their physical development. From birth, the baby is weighed and measured and, especially, in the first year of his life, his weight and growth measurements should be monitored by the pediatrician.

The genetic inheritance and the time of gestation that the baby chooses to be born determine, in principle, its weight and height. Thus, the size of the parents influences the weight and height of the baby not only at birth, but also in its later development.

Regarding the time of delivery, a distinction must be made between those who are born at term and those who are earlier than 38 weeks of gestation. At other times, a maternal illness that has not allowed you to receive enough food during pregnancy or gestational diabetes can also determine the weight and height of the baby at birth.

It is the most frequent question that parents answer after the birth of their child along with the name chosen for him. Below 2,500 grams, full-term babies are considered low weight, while above 4,000 grams, the weight is evaluated as high. The average value is between the two measurements and is around 3,000 grams.

Measurement of weight and height are routine checks that your pediatrician will carry out at each visit. It is important not to obsess over these measurements because the peaks of weight gain and growth are not always the same and, during the first year, they change every quarter.

Thus, during the first three months, weight gain ranges from 750 - 900 grams per month. Between the third and sixth month, it decreases and the increase turns around 500 - 600 grams per month. Between the sixth and ninth month, the weight gain is less, between 350 - 400 grams per month. And, finally, between the ninth month and one year of age, the monthly average is between 250 - 300 grams.

The tables on the ideal weight and measurements are indicative, an aspect that you should take into account when weighing and measuring your child. This guidance is NOT a substitute for your pediatrician's advice. Continue to respect and consider the monthly check-ups indicated by the doctor. He will be the one who will give the last word about the physical state of your son.

Until April 2006, the growth charts were based on a small infant population, of the same geographical origin and without distinguishing between breastfed and formula-fed babies. Fifteen years ago, the World Health Organization, WHO, aware of this situation and that these tables could be interfering with the health care of babies, decided to start a much larger study.

The selected population includes children of various ethnicities and origins and the novelty is that they have all been fed breast milk, which is considered the reference standard in terms of nutrition.

Children
AgeMiddleweightSize
Newborn3.4 kg50.3 cm
3 months6.2 kg60 cm
6 months8 kg67 cm
9 months9.2 kg72 cm
12 months10.2 kg76 cm
15 months11.1 kg79 cm
18 months11.8 kg82.5 cm
2 years12.9 kg88 cm
3 years15.1 kg96.5 cm
4 years16.07 kg100.13 cm
5 years18.03 kg106.40 cm
6 years19.91 kg112.77 cm
7 years22 kg118.50 cm
8 years23.56 kg122.86 cm
Girls
AgeMiddleweightSize
Newborn3.4 kg50.3 cm
3 months5.6 kg59 cm
6 months7.3 kg65 cm
9 months8.6 kg70 cm
12 months9.5 kg74 cm
15 months11 kg77 cm
18 months11.5 kg80.5 cm
2 years12.4 kg86 cm
3 years14.4 kg95 cm
4 years15.5 kg99.14 cm
5 years17.4 kg105.95 cm
6 years19.6 kg112.22 cm
7 years21.2 kg117.27 cm
8 years23.5 kg122.62 cm

You can read more articles similar to Weights and height of the baby, boy and girl, in the category of on-site development stages.

Video: Boy baby growth chart. check your baby growth with height and weight at home (September 2020).