For a couple, having a healthy baby is the most basic wish. From the moment I am pregnant with a child, I will do a series of tests for the child's health. I am also very cautious, afraid that my mistakes will lead to the unhealthy children. In order to ensure that there are no birth defects after birth, most couples will take every birth check-up seriously, but there are still many children born with birth defects.
Some congenital defects can be detected by pregnancy test, but some defects can not be detected by pregnancy test and can only be found after birth. There are many such examples. Mr. Shi and his wife in Anyang took every physical examination seriously from the moment they confirmed their pregnancy. Because his wife is disabled, Mr. and Mrs. Shi are extra careful for fear that their children will be unhealthy. From pregnancy to delivery, I had eight prenatal examinations, and only abnormal doctors suggested that there was no problem. However, at birth, Mr. Shi was told that the baby was born with congenital skull hypoplasia.
What are the birth defects that can't pass the pregnancy test?
1, dwarf
A dwarf is a child with a short stature. There are many causes of this disease, such as abnormal chromosomes and growth hormone, which may cause dwarfism, but B-ultrasound can't detect these during pregnancy test, which means dwarfism can't be detected through pregnancy test.
2. Congenital heart disease
During the fetal period, the heart is very small, so it is difficult to clearly see the internal details of the fetal heart by B-ultrasound. Moreover, the fetal heart is not fully developed, but it is fully developed after birth, so it is difficult to find the problem of congenital heart disease in pregnancy test.
3. Abnormal limbs
When the fetus is in the pregnancy test, it will not wait for the test honestly, but will often do somersaults, fists and other actions, making it difficult for the examining doctor to clearly find that the child has varus fingers or multiple fingers.
4. Congenital metabolic diseases
Congenital metabolic diseases usually occur at the age after birth, which can not be found during prenatal and prenatal examinations.
What pregnancy tests can't be missed?
Some people may ask, since the pregnancy test can't completely rule out congenital malformation, what's the point of doing it? In fact, pregnancy tests can still detect some congenital diseases. You must not miss three pregnancy tests.
1, pregnant 1 1- 14 weeks.
During this period, the fetal organs have been formed, and whether the fetus has hydrocephalus can be judged by B-ultrasound observation. During this period, early Down's screening and non-invasive genetic examination are needed to judge whether there are diseases such as preeclampsia.
2. 20-24 weeks pregnant
During this period, B-ultrasound can show the fetal head, trunk and other organs and bone structures, estimate the development of the fetus, diagnose whether it is seriously deformed, and exclude 85% of fetal structural abnormalities.
3. 28-34 weeks pregnant
During this period, we can detect the situation of the fetus in the mother's uterus, know the specific situation such as the size of the fetus, and judge whether there is abnormality again.
Therefore, although pregnancy test can not completely rule out congenital malformation and congenital diseases, it is also very useful. Pay attention to diet and environment before and during pregnancy, and stay away from all kinds of food or environment that may be unfavorable to the fetus.