What should pregnant women do for minor fetal anomaly screening?

Some pregnant women will choose to do some fetal abnormality screening during pregnancy, which is divided into fetal abnormality screening B-ultrasound and minor fetal abnormality screening. So, what is minor fetal malformation during pregnancy? What is the difference between major fetal malformation screening and minor fetal malformation screening? Next, the editor will explain these aspects in detail for everyone, hoping to be of some help to everyone.

What is a small fetal malformation during pregnancy

The first color Doppler ultrasound examination: at 6 to 8 weeks, mainly to eliminate or promptly deal with ectopic pregnancy (ectopic pregnancy) or abnormal pregnancy (hydatidiform mole, etc.), and to understand whether the test tube embryo is alive.

The second color Doppler ultrasound examination: at 11 to 14 weeks, it is mainly to accurately measure the fetal nt and combine it with the maternal blood cell test to assess the risk of chromosomal abnormalities in the fetus.

The third color Doppler ultrasound examination: at 18 to 24 weeks, it is mainly to systematically screen the baby's development and confirm whether the fetus has major deformities, including anencephaly, brain herniation, open spina bifida, damaged chest wall, eversion of internal organs, single-chamber heart, and giant cartilage dysplasia.

The 4th and 5th ultrasounds: at 32 to 38 weeks, to eliminate some abnormalities in the development of the baby that appear in the late pregnancy, to understand the position of the fetus, the position and maturity of the placenta, the amount of amniotic fluid in the pregnant woman, etc. It can determine whether the fetus has umbilical cord entanglement, how many weeks it has been around the neck, and how tight it is. It can also grasp the blood condition of the fetal umbilical cord and assess the well-being of the fetus in the uterine cavity.

What are the differences between minor and major malformations?

Minor fetal anomaly screening at 18th week of pregnancy, black and white B-ultrasound. The B-ultrasound for fetal abnormality screening is usually done in the 24th week of pregnancy. It is a 3D or 4D color B-ultrasound to check the baby's organs and development status. During this period, the baby's organs are well developed, the amniotic fluid is adequate, and the baby is not very big. A 3D (4D) B-ultrasound can be seen very clearly.

Each B-ultrasound is a process of screening for fetal abnormalities. Generally, it is done 3-4 times during the whole pregnancy. If there are special circumstances, the frequency needs to be increased. The first time: 6 to 8 weeks of pregnancy, to check for fetal heartbeat and fetal bud, to rule out ectopic pregnancy or abnormal pregnancy (hydatidiform mole, etc.). If there is no spotting or abdominal pain during pregnancy, the first B-ultrasound can be skipped. Second time: 11 to 14 weeks of pregnancy, screening the fetal nuchal translucency to assess the risk of fetal chromosomal abnormalities. The third time: 24 to 28 weeks of pregnancy, major malformations are screened, including anencephaly, encephaly, open spina bifida, damaged chest wall, eversion of internal organs, single-chamber heart and other malformations. This color Doppler ultrasound examination is crucial. Fourth: 37~40 weeks of pregnancy, master