After pregnancy, women are full of expectations for the baby in their bellies. During pregnancy, we should also pay attention to various matters, not only diet and living habits, but also pregnant women should pay attention to going to the hospital regularly. Different gestational weeks have different events. Generally, between 22 weeks and 26 weeks of pregnancy, a big abnormality is needed, that is, a four-dimensional examination. Some pregnant women think it can be seen by doing a four-dimensional examination. So what do the data on the four-dimensional list think of men and women? Let's answer this question in detail.

Biparietal diameter minus femur length.

If the biparietal diameter minus the femoral length is greater than 2, it may be a baby boy, and if it is less than 2, it may be a baby girl. To put it simply, a boy with a short head and thighs and a girl with a small head and legs.

Two lines on the right side of the four-dimensional list

Look at the two lines on the right of the four-dimensional list, which are composed of English and numbers. If it starts with m, it may be a boy, if it starts with f, it may be a girl.

The above methods are unscientific

But the way of looking at men and women mentioned above is unscientific, and pregnant women can be treated as entertainment, so don't take it too seriously. From a medical point of view, the data on the four-dimensional table can't distinguish between men and women, and of course there will be no hints. The four-dimensional table is to check whether the development of the fetus conforms to the gestational age and whether the limbs, facial features and organs of the fetus develop normally.

Want to know the sex of the fetus

If you want to know the sex of the fetus, you will usually have a doctor check the genitals of the fetus when you do color ultrasound, and you will be able to see it after four months of pregnancy. Of course, the current law does not allow gender identification, so the hospital will not tell everyone whether it is a boy or a girl.