How much is the deviation of fetal weight by B ultrasound

B-ultrasound is a type of examination that should be performed continuously throughout the pregnancy according to the growth and development stage of the fetus. Moreover, each examination has different focuses based on the woman's physical response and the development process of the fetus to ensure that every tissue part of the fetus's body can grow and develop healthily and normally. Among them, B-ultrasound can also judge the weight according to the size of the fetus. So, what is the error of B-ultrasound fetal weight?

What is the error of fetal weight in B ultrasound?

1. Doctors can use the data from B-ultrasound results to estimate the weight of the fetus through scientific calculations, and judge whether the baby's weight is appropriate and whether the birth and development are normal through comparison. This allows mothers to choose between natural birth or caesarean section.

2. In fact, there is a very convenient way, which is to search for a very accurate fetal weight calculator on the Internet. Just enter a few key data to estimate the approximate weight of your baby.

The weight of a baby after it comes into this world is about 10%-15% different from the weight measured in the mother's belly. Any large deviation is extremely normal.

3. The following conditions may cause a significant deviation from the ultrasound weight.

Since the fetus is in the mother's belly, the doctor examines the baby by examining the mother. This method will show some differences due to the influence of the pregnant woman's amniotic fluid, the different postures of the fetus, etc.

Pregnant women experience a dramatic change in weight during the last few months. Therefore, due to this situation, there will be a great need for weight gain between each other.

Many medical devices in hospitals today are not domestically produced, and the standards for these devices are mostly formulated by people overseas. There is still a huge difference in body shape between us Chinese, so there is a great possibility of deviation.