How many pounds does a baby gain in one month?

The baby's weight has a certain significance in determining whether the baby is healthy. If the baby is overweight or underweight, parents need to take certain measures to control the child's weight. So, how many pounds does it normally take for a baby to gain in a month? This can be calculated in a certain way, and the growth rate of children is different at different stages.

The birth weight of a newborn is between 2.5 and 4.0 kg. During the first week after birth, due to insufficient intake, water loss and excretion of meconium, the weight may temporarily drop by 3% to 9%, reaching the lowest point in about 3 to 4 days and then gradually recover. It usually returns to the level at birth within the seventh to tenth day.

The younger the child is, the faster he or she gains weight. A normal full-term baby's weight can increase by 1 to 1.5 kg in the first month after birth, and its weight will be about twice that at birth three months after birth. The weight gain of a child in the first three months of life is approximately equal to the weight gain in the last nine months.

Here are some formulas: 1 to 6 months: weight (kg) = birth weight (kg) x age in months multiplied by 0.7 7 to 12 months: weight (kg) = age in months multiplied by 0.25.

Weight is an important indicator of growth and development, and is an important basis for judging children's nutritional status, calculating medication dosage, and replenishing fluids.

Generally speaking, children's weight gain increases with age, and the younger they are, the faster they gain weight. But there is one special place.

Newborns may experience temporary weight loss 2 to 3 days after birth due to the excretion of meconium, absorption of vernix caseosa and loss of water, as well as weak sucking ability and small milk intake. The weight may even be lower than the birth weight. This is clinically called "physiological weight loss." By the 3rd to 4th day after birth, weight loss can reach 6 to 9% of birth weight. For example, a baby weighing 3,700 grams at birth can lose 222 to 333 grams on the 3rd to 4th day. After that, as the baby's milk intake increases, the body's adaptability to the external environment gradually adjusts, and the weight will gradually increase and return to the birth weight. If the weight drops by more than 10% of the birth weight, or has not returned to the birth level on the 10th day after birth, it is not normal "physiological weight loss" and the cause should be found out, whether it is improper feeding, insufficient milk, or the child is sick.

1. Age at first birth: If the age at first birth is under 30 years old, the birth weight of the newborn will increase with the age of the pregnant woman, but if it is over 31 years old, it will decrease with the age.

2. Gestational age: If the fetus stays in the mother's body for too short or too long, it will affect the birth weight of the newborn. 35 to 39 weeks of gestation, birth weight

The weight increases significantly with each week: from 40 to 43 weeks of pregnancy, the weight gain is slow; after 44 weeks of pregnancy, the weight decreases instead.

3. Parity and multiple births: The birth weight of the second and fifth newborns increases compared to the first birth, and the birth weight of multiple births is generally lower.

4. Health status of pregnant women: Pregnant women suffer from high blood pressure, heart disease, kidney disease and other diseases, and the birth weight of newborns is low. Infection with viruses or other microorganisms can also affect the development of the fetus.

5. Pregnant women’s hobbies: Smoking during pregnancy can cause the birth of newborns to be lower than normal weight.

6. Fetal gender: Female newborns weigh 110 grams less than males.

7. Nutritional status: Dieting, partial eating and picky eating can cause nutritional deficiencies and lead to low birth weight in newborns.