Is Down syndrome screening accurate for determining gender?

Down syndrome screening is a test that pregnant women must undergo during pregnancy, because many children who have not undergone Down syndrome screening will have Down syndrome after birth. Down syndrome children will not only bring serious troubles to the family, but also be a certain burden to the society. Some people will judge whether it is a boy or a girl when doing Down syndrome screening. So is it accurate to judge the gender of a child through Down syndrome screening?

The baby's gender has always been a matter of particular concern to parents. From the beginning of pregnancy, they want to determine whether the baby is a boy or a girl through various symptoms of the mother's body, but these are all the experiences of some elderly people and have a high probability. There is no scientific basis, so the results are not so accurate. But now we live in a technological society, and no matter what we do, we must pay attention to science, and the same goes for the baby's gender. Both B-ultrasound and color ultrasound can accurately determine the baby's gender, but due to disciplinary constraints, doctors cannot tell mothers the baby's gender, so mothers can only judge based on the results of some examinations, and the Down syndrome screening results are a more important reference item.

How to tell the gender of a Down syndrome test?

Down syndrome screening is a very important item to check the baby's health. It is a basic prenatal examination item to determine whether the baby has Down syndrome! However, after many mothers have done the examination and learned that there is no problem with the baby's health, they focus on determining the baby's gender. So how does Down syndrome screening determine the gender of the baby?

In fact, Down syndrome screening mainly looks at the MOM value of β-HCG and the AFP value:

The lower the MOM value of β-HCG (<0 4="" afp="" mom="">1), the more likely it is a boy;

The higher the MOM value of β-HCG (>0.8) and the lower the MOM value of AFP (<1), the more likely it is a girl.

You can judge based on your own prenatal examination results.

When is the best time to do Down syndrome screening?

Screening for Down syndrome cannot be done at any time. The best time for screening is between the 15th and 20th weeks of pregnancy, with 16-18 weeks of pregnancy being the best time. Because this stage is the best time to check whether the fetus has congenital mental retardation, it can also be said that this is the focus of Down syndrome screening.

Is it true that AFP value >1 means boy and <1 means girl?

First of all, we need to know in advance that Down syndrome screening determines the functional status of the placenta based on maternal hormone levels and has no direct relationship with the sex of the fetus. Therefore, the idea of ​​checking the gender of the fetus through the results of Down syndrome screening is not very scientific. It is just the experience of some netizens. Since it is the experience of people who have experienced it, you can also use it as a reference.