How often does a pregnant woman do an ultrasound?

It is very necessary for pregnant women to undergo B-ultrasound examination, because this examination method can well detect the entire process of embryo development in the uterus, and B-ultrasound examination can also determine whether pregnancy is present, so B-ultrasound examination is also a way of early pregnancy examination. In addition, B-ultrasound examination can understand the fetal heart rate and fetal movement, which are of great significance in determining whether the fetus is alive. Here we will introduce how often it is appropriate for pregnant women to have an ultrasound.

The answer to the question of how often pregnant women should have an ultrasound is not absolute. Generally, you should go to the hospital for the first ultrasound examination 50 days after the menstruation stops. If the menstruation is regular, you can see the gestational sac, primitive heart tube pulsation and fetal bud. Between 18-24 weeks of pregnancy, you should do a three-dimensional B-ultrasound to rule out fetal anomalies. This is a very detailed examination of the baby, including various organs. This is very important and must be done.

At around 32 weeks, there is also a two-dimensional B-ultrasound, which is mainly used to check the baby's development, with a focus on the baby's biparietal diameter, femur length, amniotic fluid index, placental maturity, fetal position, etc. When the baby is about to be born, there will be another B-ultrasound, which is usually done after 36 weeks. The baby's fetal position, amniotic fluid, biparietal diameter, and femur length are also monitored. These data are all to see whether the baby can be delivered naturally. Generally speaking, these four times are basically necessary. As for some pregnant women who have more B-ultrasounds during the pregnancy, it depends on their own physical conditions. If any of them is not up to standard, they need to be re-examined and have to do more B-ultrasounds. This varies from person to person.

In fact, it is very beneficial for pregnant women to undergo B-ultrasound examinations. Through this examination method, the blood flow of the fetal renal artery and cerebral artery can be observed, and whether the function of the placenta of the pregnant woman is normal can be well evaluated. It can be determined whether the fetus has hypoxia and asphyxia, and this examination can also screen for fetal malformations early.