How to distinguish the gender of a boy or girl in Down syndrome screening

After becoming pregnant, women must pay special attention to whether the baby in their belly is a boy or a girl. Knowing the gender of the baby in advance can help them prepare for the baby as early as possible, such as naming, buying clothes and shoes, etc. There are many ways to distinguish between males and females, and if you want to be more accurate, you need to use equipment to check. So how does Down syndrome test distinguish between males and females? Let's introduce it in detail below.

Down syndrome screening is a detection method that draws serum from pregnant women to test the concentrations of alpha-fetoprotein, chorionic gonadotropin and free estriol in the maternal serum, and calculates the risk of giving birth to a fetus with congenital defects based on the pregnant woman's due date, weight, age and gestational age at the time of blood collection. Currently, the only accurate and reliable way to know the sex of the fetus is to look at the fetus's genitals through B-ultrasound or to do amniocentesis to detect chromosomes.

Down screening is the abbreviation of prenatal screening test for Down syndrome. The purpose is to determine the risk of the fetus suffering from Down syndrome by testing the blood of pregnant women. If the results of the Down screening show that the fetus has a higher risk of Down syndrome, further confirmatory tests should be carried out - amniocentesis or chorionic villus sampling.

Guidance:

Down syndrome screening results have nothing to do with gender, it is only used to rule out Down syndrome

Down syndrome is also called trisomy 21, which means that the patient's 21st pair of chromosomes has one more than the normal person (normal people have one pair). Down syndrome screening is based on the AFP and HCG levels in the pregnant woman's serum, combined with the pregnant woman's age, weight, and gestational age to calculate the risk value. The critical value is 1/275. A value greater than this is high risk, and a value less than this is low risk. The probability of the general population (under 37 years old) suffering from Down syndrome (DS) is 1/750.

Is Down syndrome screening accurate in determining the gender of a child?

Down syndrome screening determines the functional status of the placenta based on the maternal hormone level and has nothing to do with determining whether the baby is a boy or a girl. Many people say that the gender of a child can be determined through Down syndrome screening results, but this is just empirical knowledge and has no scientific basis. It can only be used for reference.

It is not reliable to predict the gender of a baby based on the results of Down syndrome screening. Regarding the prediction of the gender of a baby, you should know the following points:

1. Currently, the only accurate and reliable way to know the sex of the fetus is to look at the fetus's genitals through B-ultrasound or to do amniocentesis to detect chromosomes.

2. Other B-ultrasound data streams, uterine surface cleaning streams, uterine height streams, belly shape streams, early gestational sac shape streams, Down syndrome screening data streams, pregnancy reaction streams, fetal movement streams, fetal growth sac streams, etc. are all seemingly reasonable pseudosciences, without any scientific basis, and are all folk experience. It's essentially the same as "sour boy, spicy girl".

3. If you really want to know the gender of the fetus, the most feasible and accurate method is to find an ultrasound doctor through connections. But doctors won’t tell you at the moment, because each hospital has relevant regulations, strictly requiring doctors to keep the B-ultrasound results to a confidential level to determine the gender of the baby. Men and women are equal, and it is equally good to have a boy or a girl.