Is it good to do B-ultrasound frequently during pregnancy?

During pregnancy, various physical examinations will be performed, and B-ultrasound examination is one of the more important ones. The main purpose of doing a good pregnancy checkup is to check the healthy development and growth of the baby, as well as the physical condition of the pregnant woman, so as to facilitate a smooth delivery. Therefore, doing a good job of pregnancy check-up is a very important thing for everyone. So, is it good to do B-ultrasound frequently during pregnancy?

Is it good for pregnant women to do B-ultrasound frequently?

B-ultrasound examination is an important item in pregnancy check-up. It should be performed one month after pregnancy. The data on the B-ultrasound report can help doctors observe and find out whether the fetal body structure development is abnormal, judge the size of the fetus and the actual number of weeks of pregnancy of the pregnant woman, etc. B-ultrasound uses ultrasonic conduction to examine the fetus. It does not produce ionizing radiation or electromagnetic radiation and will not have adverse effects on the fetus.

The B-ultrasound currently used in clinical practice emits a sound intensity of less than 10mW/cm2 from its probe, and the ultrasound examination usually takes only 5-10 minutes, with the detection time for each organ being even shorter. Therefore, B-ultrasound examination poses little harm to the fetus and will not affect its physical development. Therefore, pregnant women do not need to be afraid of B-ultrasound examinations during pregnancy. Timely B-ultrasound examinations are an important means to ensure the normal development of the fetus.

It is generally recommended that pregnant women undergo three ultrasound examinations during pregnancy, one each in the early, middle and late stages. In addition, necessary examinations should be carried out according to the physical condition of the pregnant woman and the doctor's instructions. For example, when a pregnant woman shows symptoms of miscarriage, the doctor may need to use B-ultrasound to confirm the condition of the fetus. At this time, you must not blindly worry that B-ultrasound will affect the fetus and insist on not doing it.

However, some pregnant women are unclear about the purpose of B-ultrasound examinations. In order to find out the gender of the fetus, they go to multiple hospitals for repeated B-ultrasound examinations, which is not good for both mother and baby. Studies have shown that if the B-ultrasound time exceeds 20 minutes, it will have irreversible adverse effects on the fetus. Therefore, it is recommended that pregnant women do not undergo B-ultrasound casually unless there are any abnormal conditions during the entire pregnancy.

Time for ultrasound examination during pregnancy

1. The first check-up should be between 12 and 16 weeks of pregnancy

When the pregnancy is 12 to 16 weeks, the expectant mother will usually go to the hospital for the first ultrasound examination as prescribed by the doctor. At this time, an ultrasound examination can be performed to understand the general growth and development of the fetus, such as determining whether the pregnancy is single or multiple; measuring the length from the fetal head to the fetal buttocks to determine the gestational age of the fetus; measuring the biparietal diameter of the fetal head, head circumference, abdominal circumference and length of the femur to determine the growth and development of the fetus.

2. The second check should be between 20 and 25 weeks of pregnancy

During this stage, we can have a further understanding of the position of the fetus and the amount of amniotic fluid; we can use B-ultrasound to understand the condition of the placenta, such as the structure of the placenta, the maturity of the placenta, whether there is separation between the placenta and the uterine wall, bleeding and other very important information; we can have a clearer understanding of the development of fetal tissues and organs, and thus understand whether the fetus has malformations; we can also clearly understand whether the position of the placenta is normal, whether there are hemangiomas in the placenta, whether the placenta is consistent with the gestational age, and we can clearly diagnose the existence of dangerous conditions such as placenta previa and early placental abruption.

3. The third check should be between 37 and 40 weeks of pregnancy

The B-ultrasound at this stage can help pregnant women observe the fetal position, fetal size, degree of placental maturity, whether the umbilical cord is wrapped around the neck, etc., conduct a final assessment before delivery, and make various preparations before delivery, so this B-ultrasound is very important.

This examination can estimate the fetal weight based on the fetal head diameter and bone measurements, determine the fetal position, and predict whether the pregnant woman can give birth naturally.