With the development of science and technology, more and more mothers and fathers in anticipation of their own little baby, will want to use all possible ways to predict and estimate the sex of their baby, some people are not related to the discrimination, just pure curiosity, but the law stipulates that the doctor can not be informed of, or else you have to bear the corresponding legal responsibility, then the mother and father will have to make every effort to look at the fetal heart rate can The first thing you need to do is to look at the color of the skin and the texture of the skin.

There is a saying that the fetal heart rate is less than 140 beats per minute, the fetus is a boy. In general, the heart rate of girls is higher than that of boys, but this has nothing to do with the sex of the fetus.

The normal heart rate of a fetus is between 120 beats per minute and 160 beats per minute. Experts point out that listening to the fetal heart requires the use of specialized instruments, about 12 weeks of pregnancy can be heard with a Doppler stethoscope in a very quiet situation, we recommend that mothers-to-be to go to the hospital to listen to the baby's heart or listen to the baby's heart at home using a baby talker, which also has a sex test function. The test function is also available in the mobile phone software of the Fetal Language Instrument.

How can I tell the sex of my baby from the ultrasound data? Generally speaking, the data on the ultrasound sheet are biparietal diameter, abdominal circumference, femur length, fetal sac, the number of fetal heartbeat, etc., but also from the ultrasound to observe the placenta, amniotic fluid, umbilical cord, fetal spine and so on. According to folklore, the following methods can be used to determine the gender of the fetus through ultrasound data:

1. Look at the gestational sac: Look at the ultrasound sheet when you are 40-50 days pregnant, and observe the size and shape of the gestational sac to be able to see the gender of the fetus, the shape of the gestational sac is elliptical or rounded is the female baby, and the elongated one is the male baby.

2, look at the biparietal diameter and femur length: the biparietal diameter of the fetal head cross diameter, while the femur length is the length of the fetal thigh bone, the old generation of the saying is that the head of the short legs is a boy, that is, the biparietal diameter - the femur length >2, the head and the legs of the difference between the small is a girl.

4D ultrasound, compared with other ultrasound examinations, can observe the dynamic movement of the internal organs of the human body in real time, and can also accurately distinguish the sex of the fetus. Although 4D ultrasound can see the gender of the fetus, during the examination, in order to avoid revealing the gender of the fetus, the doctor will actively avoid the gender characteristics of the fetus as well as the lower half of the body, and at the same time, in the post-production of the CD-ROM, the part that may reveal the gender of the fetus will also be processed.

In general, 4D ultrasound to see the gender is not allowed. Although 4D ultrasound to see the sex of the fetus is practicable, but the state clearly stipulates that non-medical purposes to distinguish between the sex of the fetus is illegal, any institutions and individuals are not allowed to carry out non-medical needs of fetal sex identification, but also strictly prohibit the use of technical means of identification of the sex of the fetus. Regardless of whether the baby is a boy or a girl, he is the crystallization of the couple's love, parents-to-be should be more concerned about whether the fetus is healthy, normal development, rather than care about the gender.

The body of a pregnant woman will experience some changes when she is pregnant, such as the belly getting bigger and producing stretch marks. It is believed that by observing these changes, one can roughly deduce whether a pregnant woman is carrying a boy or a girl. The characteristics of having a boy are:

1, the stomach shape is more pointed, the chances of carrying a boy are high.

2. A protruding navel is a boy.

3. The stretch marks are thin, long and straight.

4, the early ultrasound fetal sac is a long strip. For example, on the 52nd day of pregnancy, the fetal sac is 4.2 x 2.1 x 1.4.

5, the value of the biparietal diameter - femur length is greater than 2.

6, pregnant women with anterior placenta, the likelihood of conceiving a boy is greater.

7, the urine test during pregnancy, the pH value shows an upward trend is pregnant with a boy.

8, late pregnancy, due to the rise of androgens pregnant with a boy, resulting in pregnant women's thigh roots, armpits, areolas, neck black.

9, the pregnant woman's nose becomes bigger, on behalf of pregnant with a boy.

However, experts advise that the above methods are for reference only and do not guarantee accuracy. In fact, the method of judging the sex of a baby based on the reaction of pregnancy is not much better than the coin tossing method.