Are boys generally pregnant with NT below 1.3? Prenatal screening during pregnancy is an important examination used to assess the risk of congenital diseases such as chromosomal abnormalities in the fetus. Among them, NT (Nuchal Translucency) refers to the thickness of the transparent zone in the fetal neck. Based on some research and statistical data, some people have proposed that fetuses with NT less than 1.3mm are more likely to be boys. However, this statement is not accurate and lacks scientific basis.

Firstly, there is no direct correlation between NT values and fetal gender. The NT value is mainly used to evaluate whether the fetus has chromosomal abnormalities, such as Down syndrome. Although some people have proposed the relationship between NT values and gender based on their own experience and observations, this is not scientifically sound. Large scale studies have shown that there is no significant correlation between NT values and fetal gender.

Secondly, the gender of the fetus is determined by genetics. Male fetuses have the XY chromosome, while female fetuses have the XX chromosome. This gender determination process occurs during fertilization and is not related to the NT value during pregnancy. Therefore, it is not possible to determine the gender of the fetus using NT values.

Finally, the NT value is influenced by multiple factors. Although the NT value can usually be used to evaluate whether a fetus has chromosomal abnormalities, this value is also influenced by other factors, such as the mother's age, weight, gestational age, etc. Therefore, relying solely on NT values to predict fetal gender is unscientific and inaccurate.

Are boys generally pregnant with NT below 1.3? There is no direct correlation between fetuses with NT values below 1.3mm and gender. The gender of the fetus cannot be determined by the NT value, as gender is determined by genetics and is not related to the NT value during pregnancy. When conducting prenatal screening, doctors usually consider multiple indicators, such as NT values and blood test results, to assess whether the fetus is at risk. It is recommended that pregnant women maintain a positive and optimistic attitude during the screening period, consult a professional doctor, and conduct relevant examinations and follow-up according to the doctor's instructions.

Reference:

1. Godpole K, et al. Material series biochemical markers and combined screening for trisomy 21,18 and 13. Preliminary Diagnosis.2014; 34 (5): 409-15

2. Odibo AO, et al. Prenatal Genetic Testing. Obstetrics&Gynecology. 2018; 132 (2): 259-73