12 weeks head-to-hip diameter to determine gender

After a woman becomes pregnant, what she cares most about is whether the baby is growing happily in her belly. In addition, the most concerned thing is the gender of the baby. Since doctors are strictly prohibited from revealing the baby's gender to parents in our country, various ways to determine the baby's gender are spreading privately. Using the crown-rump diameter in the 12-week ultrasound examination report to determine the gender of the fetus is one of them. So, is it accurate to determine the gender of the fetus based on the crown-rump diameter at 12 weeks?

Is it accurate to determine the sex of the fetus by the crown-hip diameter at 12 weeks?

Many people think that the baby's top-to-buttocks diameter can determine the gender of the baby. The specific method is as follows:

1. If the biparietal diameter minus the femur length is more than 2, it is a boy, with a success rate of 90%, otherwise it is a girl.

2. Biparietal diameter - if the femur is longer than 2, it is a boy (10% is a girl).

3. Biparietal diameter-femur length less than 2 is a girl (10% are boys).

4. Biparietal diameter - femur length is equivalent to 2, with the gender ratio being half and half.

In fact, the biparietal diameter is also known as BPD, which is the biparietal diameter of the fetal head position. It refers to the length of the widest part between the upper and lower sides of the fetal head, also known as the "large and thick diameter of the head". Doctors often use it to observe the growth and development of children, determine whether there is cephalopelvic disproportion, and facilitate delivery of pregnant women. Femoral length (FL) is a common indicator used by doctors to observe the baby's development during prenatal checkups using B-ultrasound (or B-ultrasound). These two factors have no direct correlation with the gender of the fetus. Therefore, it is not scientific to use the biparietal diameter to determine whether the fetus is a boy or a girl, and it is also not scientific to use the femur length to determine whether the fetus is a boy or a girl.

Other ways to identify the sex of the fetus

1. Look at the shape of the gestational sac. Two months before pregnancy, the gestational sac of a boy is long, and that of a girl is oval or round (success rate 80%)

2. Down syndrome screening data information, success rate 80%. When the mom value of AFP is greater than 1 and the mom value of hcg is less than 0.5, it is a boy; when the mom value of AFP is less than 1 and the mom value of hcg is greater than 1, it is a girl; when the HCG value is between 0.5 and 1, if AFP is greater than 1, it is a boy, and if AFP is less than 1, it is a girl.

Up to now, the only way to accurately identify the sex of the fetus is B-ultrasound examination. The other methods are just market legends. Pregnant women can use them to entertain everyone, but they cannot be completely believed. Moreover, no matter whether the baby is a boy or a girl, it is the product of the mother's hard work for ten months. It is the source of the father and mother's life. Pregnant mothers should take good care of themselves and let the baby grow up healthily. Don't care too much about the baby's gender.