How often do pregnant women usually do B-ultrasound

Pregnant women can better judge the health of their children by doing B-ultrasound during pregnancy. Therefore, many pregnant women want to fully understand how often pregnant women usually have B-ultrasound. The following content introduces this knowledge in detail to many pregnant women. For many women who want to fully understand these aspects, they can have a specific understanding of the following content.

Generally speaking, in the early stages of pregnancy, in addition to routine gynecological examinations of pregnant women, B-ultrasound should be used to determine whether the intrauterine pregnancy is normal. If no signs of pregnancy are detected in the uterine cavity, but abnormal echoes are detected outside the uterine cavity, an ectopic pregnancy can be diagnosed in combination with other clinical manifestations. It is reported that the accuracy of B-ultrasound diagnosis of ectopic pregnancy can reach 70%. If it is an intrauterine pregnancy, B-ultrasound can be used to determine whether the fetus has any deformities. Therefore, it is generally recommended to use B-ultrasound in the early stages of pregnancy to determine whether the intrauterine pregnancy is normal.

In the second half of pregnancy, around 16 weeks after amenorrhea, another B-ultrasound is needed to determine whether the fetus has any malformations and whether its growth and development are normal. If the fetus is found to be abnormal at this time, the correct choice is to terminate the pregnancy within 20 weeks of amenorrhea.

In the late pregnancy, that is, after 36 weeks of amenorrhea, B-ultrasound can clearly understand the amount of amniotic fluid and whether the placenta is functioning normally, so as to decide whether to continue the pregnancy and, if necessary, perform a cesarean section. Foreign studies have shown that B-ultrasound can be harmful to the fetus. In recent years, relevant experts in my country have observed women who were 7-8 weeks pregnant and preparing for abortion. They were divided into three groups according to the length of time for B-ultrasound examination: 1 minute, 3 minutes, and 10 minutes. The results showed that before the B-ultrasound examination, the embryos in these pregnant women were well developed. After the B-ultrasound examination, except for 5 cases with no changes in the 1 minute examination, 5 out of 7 cases in the 3-minute group and 3 out of 5 cases in the 10-minute group showed deformation of the embryonic villi, disordered cell arrangement, and bubble-like structures in the cells. Further development of these symptoms may lead to fetal malformation or miscarriage. Obviously, the shorter the time of B-ultrasound exposure to the embryo, the smaller the impact.

Through the above comprehensive introduction, I believe that many pregnant women have a comprehensive understanding of how often to do B-ultrasound during pregnancy? Experts suggest that the number of B-ultrasounds should not be too many during pregnancy, and 3 times during pregnancy is enough. The above content has made a comprehensive introduction. For many pregnant women, they can have a specific understanding of this aspect.