How much biparietal diameter is needed to determine the baby's gender? Can biparietal cervical stenosis be used to determine the gender?

Many parents want to know in advance how much the biparietal diameter is for a boy. Today, let's talk about whether the biparietal diameter can determine the gender. Parents who want to know the gender of their baby cannot use folk remedies to determine it. It's the same whether you have a boy or a girl, and a healthy baby is the best.

How much biparietal diameter is the best indicator of a boy?

The biparietal diameter is also called BPD, the biparietal diameter of the fetal head. It refers to the length of the widest part between the left and right sides of the fetal head, also known as the "great transverse diameter of the head". Doctors often use it to observe the development of the child, determine whether there is cephalopelvic disproportion, and smooth delivery.

The biparietal diameter of the fetus should reach 9.3 cm or more at full term. According to general rules, after 5 months of pregnancy, it is basically consistent with the month of pregnancy, that is, the BPD is about 7.0 cm at 28 weeks of pregnancy (7 months), about 8.0 cm at 32 weeks of pregnancy (8 months), and so on. After 8 months of pregnancy, an average weekly growth of about 0.2 cm is normal. When the due date cannot be determined by CRL in the early stage, BPD is often used to predict it; after the middle period, this data is often also needed to measure when estimating the fetal weight.

Experts remind: It is not scientific to use the biparietal diameter to determine whether the fetus is male or female. However, the biparietal diameter can be used to calculate the weight of the fetus. The formula is: Fetal weight = biparietal diameter * 900-5200 (g)

Femoral length (FL) is an indicator commonly used by doctors to observe fetal development when performing pregnancy examinations on pregnant women using B-ultrasound (or color ultrasound).

The femur and humerus are both typical long tubular bones in the human body, and can be divided into two ends. The femur is the largest long bone in the human body, referring to the thigh bone; the humerus is located in the upper arm, also called the upper arm bone. So as the name suggests, the length of the femur is the length of the thigh bone, and the length of the humerus refers to the length of the upper arm bone.

Femoral length and humerus length are both fetal biological indicators for predicting fetal weight. However, fetal humerus length is better than femoral length in predicting fetal weight.

Experts remind: Using the length of the femur to determine whether the fetus is male or female is unscientific and has no basis.

Can double neck determination determine gender?

Is biparietal diameter accurate in determining gender?

It is not accurate to use the biparietal diameter to determine whether the fetus is male or female. The determination of the baby's gender is related to the biparietal diameter bone length, but the fetus's gender cannot be determined solely by the biparietal diameter femur length.

This is how most people determine the sex of the fetus: subtract the femur length from the biparietal diameter. If the resulting data is greater than 21mm, it is a son, otherwise it is a daughter. The reason is: boys tend to have big heads and short legs, while girls tend to have long legs and small heads.

Many people use the above method to determine the sex of the fetus, so how accurate is it? In fact, this method has no scientific basis. The biparietal diameter and femur length are only indicators of fetal development and have nothing to do with the sex of the fetus. Therefore, pregnant mothers can only treat it as a pastime and entertainment and should not take it seriously.

What does double neck mean?

Femoral length (FL) is an indicator commonly used by doctors to observe fetal development when performing pregnancy examinations on pregnant women using B-ultrasound (or color ultrasound).

The femur and humerus are both typical long tubular bones in the human body, and can be divided into two ends. The femur is the largest long bone in the human body, referring to the thigh bone; the humerus is located in the upper arm, also called the upper arm bone. So as the name suggests, the length of the femur is the length of the thigh bone, and the length of the humerus refers to the length of the upper arm bone.

Femoral length and humerus length are both fetal biological indicators for predicting fetal weight. However, fetal humerus length is better than femoral length in predicting fetal weight.

Experts remind: Using the length of the femur to determine whether the fetus is male or female is unscientific and has no basis.

The fetal biparietal diameter refers to the length of the widest part between the left and right sides of the fetal head, also known as the "great transverse diameter of the head."

Also known as BPD, doctors often use it to observe fetal development, determine whether there is cephalopelvic disproportion, and ensure a smooth delivery.

It should reach 9.3 cm or more at full term. According to general rules, after 5 months of pregnancy, it is basically consistent with the month of pregnancy, that is, BPD is about 7.0 cm at 28 weeks of pregnancy (7 months), about 8.0 cm at 32 weeks of pregnancy (8 months), and so on. After 8 months of pregnancy, an average weekly growth of about 0.2 cm is normal. When the due date cannot be determined by CRL (crown-rump length) in the early stages of pregnancy, BPD is often used to predict it; after the second trimester, this data is often also needed to be measured when estimating the fetal weight.