Being pregnant means having to attend prenatal check-ups. During the entire pregnancy, about 13 prenatal check-ups are required. Some pregnant mothers need to increase the number of prenatal check-ups appropriately due to physical factors. Through pre-natal check-ups, they can also get a timely and correct understanding. to the development of the fetus.

There are also several prenatal checkups for major abnormalities throughout pregnancy. These prenatal checkups are particularly important. They eliminate the probability of fetal malformations in stages, so pregnant mothers must treat each checkup correctly. Have a prenatal check-up and face it positively. I would like to ask if the NT, non-invasive, and four-dimensional examinations are all fine, is there still a possibility of fetal malformation? ?

In fact, these important malformation examinations are ruled out based on probability, which is not 100% correct. However, if these examinations can be completed on time during pregnancy, the probability of malformation is about 99%. In view of the limitations of these current examination methods, prenatal diagnosis of all malformations cannot be 100%. In other words, even if all tests are OK, it does not mean that the fetus is necessarily normal.

Therefore, pregnant mothers should still cooperate with doctors and do other prenatal examinations, such as diabetes screening, high blood pressure screening, amniotic fluid volume screening, etc., so as to minimize the risk of fetal death. An abnormal situation occurs. What deformities are difficult to see during prenatal examination?

1. Ear deformity?

Although four-dimensional color ultrasound can see the baby's face in all directions, some fetuses have ears that are close to the skin of the head, making it difficult to see clearly. The contour of the ear causes some babies to not be able to detect it due to ear canal problems.

2. Finger problems?

Babies like to clench their fists whether they are in the mother’s belly or after birth, so when they are in the mother’s belly, they sometimes cannot see anything during ultrasound. Know your baby’s finger problems. However, this problem is not a major problem and can usually be cured through surgery.

3. Hearing and vision problems?

The baby’s hearing problems can only be known through hearing screening after birth. The baby’s vision problems also need to gradually grow after birth. Only when the condition is discovered, such as eyelid ptosis, anophthalmia, etc., so it cannot be detected in the mother's belly.

4. Metabolic problems?

Most metabolic problems in newborns cannot be detected during pregnancy tests, and many metabolic diseases have certain genetic factors, so they can only wait. After the baby is born, you will gradually discover it by observing the eating situation.

5. Dwarfism?

The height of a normal full-term baby at birth is generally 48-52cm. If someone has dwarfism, then his height at birth It is also within the normal range, but skeletal development will gradually show abnormalities at 5-7 months, so it cannot be detected during pregnancy.

6. Intestinal problems?

Intestinal problems in newborns generally include abdominal distension, vomiting, inability to eat, and inability to defecate normally. Intestinal abnormalities cannot be detected during pregnancy. It comes out because the fetus' intestines begin to develop around 24 weeks of pregnancy, but the fetus's swallowing function is relatively weak at this time, so it cannot be diagnosed. So, what are the malformation tests for pregnancy?

1.NT examination

This is an early screening method that uses ultrasound to scan the translucency of the fetal neck to detect whether the fetus has Down syndrome. The accuracy is relatively high. , the test result is <3mm, which is normal, and >3mm, which is abnormal. ?

2. Down syndrome screening

This is based on extracting the venous blood of the pregnant mother and combining it with the mother's weight, age, gestational age, etc. to estimate whether she has Down syndrome. Although the accuracy rate is only about 70%, pregnant mothers should take it seriously. If the test results show a high risk, non-invasive DNA and amniocentesis can be used to confirm the diagnosis.

3. Non-invasive DNA

Non-invasive DNA is also a screening project for chromosomal abnormalities, with an accuracy of up to 99%. If NT or Tang screening is high-risk, it can be tested as needed. However, although the accuracy of non-invasive DNA is high, it is only a screening and cannot confirm the diagnosis.

4. Amniocentesis

This is to extract the amniotic fluid of the pregnant mother through a special needle for testing. It is mainly targeted at older mothers, those with high risk of Tang syndrome, and those who have given birth to children with malformations. Mom, because amniocentesis is a diagnostic method with an accuracy rate of 99.9%. It can also detect anencephaly, neonatal hemolytic disease, etc.

4. Four-dimensional color ultrasound

This is a large-scale abnormality examination. As long as the ultrasound can see it, it can detect everything. It can observe the fetal development in many directions and angles. Development in the womb helps doctors detect fetal abnormalities or malformations as early as possible.

Four-dimensional color Doppler ultrasound can rule out many malformations, such as congenital heart disease, harelips, fingerlessness, etc. You can also see the fetus smiling, swallowing, yawning, kicking, sucking fingers, etc. in the womb.

Therefore, for the healthy development of the fetus and the happiness and harmony of the family, no matter how busy or hard the pregnant mothers are, they must insist on going for prenatal check-ups on time to prevent abnormalities during the growth and development of the fetus. ?

Of course, it is impossible for every pregnant mother to pass the prenatal check-up smoothly during the entire pregnancy. If some pregnant mothers are not so lucky and are found to be at high risk, don’t worry too much. You can go for further tests.

I am a lazy mother, a mother of two children, an original author on multiple platforms, and I have been in the parenting circle for many years. I focus on motherhood, childbirth, and parenting solutions. Follow me to learn more. This article is original and plagiarism will be investigated. The pictures come from the Internet and any infringement will be deleted.