The minimum birth weight, which is considered the norm, starts at 2 kg 600 g. Children born with less weight are considered to be lightweight, regardless of whether they were born on time or are premature.
If the birth weight exceeds 4 kg, the baby is considered large. Thus, the fluctuation in the rate of birth weight is 1 kg 400 g.
Any deviation from normal weight is not too good, but it happens quite often. In practice, the weight of newborns can vary by almost half. Therefore, the answer to the question of how much a baby should weigh at 3 months depends, first of all, on its birth weight.
Weight gain dynamics
Immediately after birth, the baby loses weight . This is due to the fact that the baby with a full intestine is weighed, and during the first days, infant feces (meconium) are excreted. Of course, the newborn eats, but there is so little colostrum that the weight decreases. After a couple of days, the removal of meconium ends, the mother “comes” with milk, and the baby begins to add. Maximum weight loss should not exceed 10% of the original mass. In the first four weeks, the baby usually adds 600-800 grams of the initial weight, starting from the second month the rate of increase is from kilogram.
How much should a baby weigh at 3 months?
It is easy to calculate that a baby who was born with a weight of 2600 grams, according to pediatric standards, will weigh a little more than 5 kg (2600–260 + 700 + 1000 + 1000). A baby whose birth weight was 4000 grams can weigh about 6500 g at 3 months (4000–400 + 700 + 1000 + 1000). But weight gain rarely goes according to plan. Small children often add faster than those born large. The rate of increase depends on what kind of feeding the baby is (breast or artificially), on the quality of the mother’s milk. The health of the infant itself also affects this process.
Colic, dysbiosis, SARS and, in general, any ailments interfere with weight.
Parental unrest
Parents of the newborn, especially the first-born, are concerned not only with weight, but also with many other issues. How and how much should a cough baby in 3 months? How much urine should be excreted and how many times? How much milk should I drink per feed?
• A baby can have stools from 10 times a day to 1 time in two days. Artists usually poop less.
• A baby should pee 15 or more times a day. This is evidence that he has enough milk.
• At a time, the newborn drinks 20–80 ml, at 2 months - 120 ml, at 3 months - 150 ml.
Compliance assures parents that everything is going right. But the mother’s most important question is still weight. How much should a baby weigh at 3 months? Or six months? At 8 months?
Previously, everything in pediatrics was scheduled by the clock, but now they prefer a free schedule of feeding and sleep. That is, the child is not customized to a specific standard, schedule. But young parents still care: what schedule to set, how much the child should sleep at 3 months, and how long he has the right to stay awake.
Infants up to 6 months of age usually live a fairly uniform day. His adventures fit into the short period of time between sleep and feeding. Gradually, the amount of sleep decreases. A newborn does not stay awake for more than half an hour, the monthly can look at the world an hour. At three months, the baby may well not sleep for two hours.
With parenting experience comes calm. Over time, any reasonable parent understands that it is not so important how much a child should weigh at 3 months or a year. It is important how he feels, how developed, what he is accustomed to.