How to calculate the weight of a baby in the belly?

Nowadays, people pay more and more attention to eugenics. During pregnancy, you need to go to the hospital regularly for prenatal check-ups. Various examinations can help you understand the health of the fetus. There are many indicators that can be detected by scientific instruments, but the weight of the fetus is not easy to measure. At this time, the size of the fetus is generally used to judge whether the development is normal. The current method of calculating fetal weight is as follows.

How to calculate the weight of a baby in the belly?

The weight of the baby in the belly is usually calculated by measuring the uterine height and abdominal circumference.

Measuring the height of the uterine fundus

The height of the uterine fundus (uterine height) of an expectant mother can reflect the development of the baby. In the early and middle stages of pregnancy, the size of the baby can be observed through changes in the uterine height. Before each measurement, the expectant mother should empty her bladder first, otherwise it will affect the accuracy of the measurement of the height of the uterine fundus. Then, the expectant mother lies on her back on the bed with her legs bent, and the expectant father helps measure the distance from the upper edge of the pubic hair (i.e. the upper edge of the pubic symphysis) to the highest point of the fundus of the uterus.

Calculate your baby's weight

Towards the end of pregnancy, especially when the due date is approaching, the baby's birth weight can be calculated using a formula. The closer you are to your due date, the more accurate the calculation will be. The commonly used relatively simple calculation formulas are:

Method 1: Baby weight (g) = uterine height (cm) × abdominal circumference (cm) + 200

Method 2: Baby weight (g) = uterine height (cm) × 100

Note: When measuring the expectant mother's abdominal circumference, keep the tape measure at the level of the navel, with enough space for one finger between the tape measure and the abdominal wall.

In this case, the fetal weight can be estimated by the baby's biparietal diameter. Get adequate rest, avoid strenuous activities, improve nutrition, keep your vagina clean and hygienic, avoid sexual intercourse, and have regular check-ups. If everything is normal, there is no need to worry. Fetal size is related to genetics and nutritional status.

The baby's weight in the womb can be calculated by multiplying the biparietal diameter by 900, subtracting 5200 to get the fetal weight, or multiplying the uterine height by the abdominal circumference and adding 200 to get the fetal weight in grams. The fetal weight can also be displayed during B-ultrasound examination.