What is a major fetal malformation screening during pregnancy?

There are many prenatal check-ups during the entire pregnancy period, and fetal abnormality screening ultrasound is one of the more important ones. To put it simply, it is a check to exclude the possibility of fetal abnormalities. Pregnant mothers need to make an appointment at the hospital in advance to avoid missing the best time for examination. However, many pregnant mothers, despite following the examinations assigned by the doctor, still don’t understand what B-ultrasound for fetal abnormality screening is. Now, follow the editor to find out!

What are the B-ultrasounds for screening malformations during pregnancy

"Major fetal abnormality screening" is a comprehensive B-ultrasound examination to see whether the fetus has serious malformations in its development, so as to rule out malformations. This examination is usually performed at 20-24 weeks. Because the fetus is in the rapid development stage of the human brain when it is around 24 weeks, the structure of the fetus at this stage has been formed, the size of the fetus and the amniotic fluid of the pregnant woman are appropriate, the activity space in the uterine cavity is relatively large, the echo effect of the fetus' bones is small, and the image is clearer.

Ultrasound examination can eliminate most of the malformed fetuses, but due to different times and fetal positions, the images generated are also different. Therefore, it is not possible to completely eliminate all malformed fetuses.

What are the malformations that can be diagnosed by B-ultrasound during pregnancy?

Major fetal malformation screening mainly involves a systematic observation of the general structure of the fetal epidermis and internal organs. Malformations that can be detected prenatally include congenital heart disease, cleft lip and palate, hydrops fetus, congenital fingers (toes) and external auditory canals, severe cranial malformations (anencephaly, moderate to severe hydrocephalus, hydrocephalus, severe encephaly, alobular holoprosencephaly), severe cystic hygroma, single-chamber heart, severe chest wall deficiency, ectropion, severe omphalocele, teratoma with a diameter of more than 5 cm, chondrodysplasia mortis, severe open spina bifida, and severe deficiency of the femoral head, ankle, fibula, humerus, phalanges, and radius.

Ultrasound for fetal abnormality screening is a test to see whether our baby's growth and development is normal. It can rule out most of the deformities and is a very important way for us to understand the health of our baby. Therefore, pregnant mothers must go for the test on time, otherwise they will miss the best time for the test and the test results may not be very true. Here, the editor also wishes the pregnant mothers’ children healthy growth!