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What diseases can't be detected by four-dimensional ultrasound? What are the precautions during preg

Many pregnant mothers feel relieved after doing four-dimensional ultrasound, but as a result, the fetus is still deformed. In fact, four-dimensional ultrasound can not detect everything. Therefore, if you want to have a healthy baby, you have to do a good job during pregnancy preparation.

Four dimensional color Doppler ultrasound can't find anything

You know, not all deformities can be found. No hospital dares to say which fetus must be healthy or abnormal. Due to technical limitations, all examination indicators can only give a probability in the end. Medical technology has been improving this probability, but so far, it has not been able to achieve 100% teratogenesis. The following are 8 kinds of malformations that can not be detected by four-dimensional color Doppler ultrasound

1. Water kidney or water brain

There are a lot of hydrocephalus or hydronephrosis, will be gradually produced in late pregnancy.

2. Total blindness

Fetus in the uterus because there is no light stimulation, so will not open the eyes, so can not diagnose congenital total blindness or microphthalmos.

3. Congenital hearing impairment

When the fetus is 5-6 months old, the hearing has developed, but there is no way to know whether the fetus has congenital hearing impairment.

4. Congenital heart disease

The atrial septum (i.e. foramen ovale) and the arteriovenous catheter of the heart are gradually closed after birth. Although heart disease can be easily diagnosed at birth, it cannot be known before birth.

5. Gastrointestinal obstruction

Gastrointestinal obstruction lesions, very few will appear before 24 weeks of pregnancy, because the fetus in the early pregnancy, rarely swallow amniotic fluid.

6. Limb (finger, toe) end abnormality

For example, hand and foot varus or valgus, polydactyly, syndactyly or phalangeal loss and other abnormal conditions, but also because the fetus is often in a clenching state, it is almost impossible to be accurately diagnosed by ultrasound.

7. Dwarfism

There are some dwarfism symptoms that cannot be diagnosed early. Because when the fetus is 6-7 months old, it will gradually stop the development and growth of bone.

8. Congenital metabolic abnormality

Most biochemical metabolic disorders, such as mucopolysaccharidosis, do not develop until the baby is born and fed. As a result, many fatal biochemical metabolic abnormalities cannot be identified before birth unless the mother has given birth to a baby with similar diseases.

Watch out for the 'minefield' that causes fetal malformation

Pregnancy check-up can't be guaranteed, and special check-up can't be 100% reliable. What can we do? Only prevention! In addition to taking every prenatal check-up seriously, we must be alert to these "minefields" which are easy to cause fetal malformation!

Don't marry close relatives

This is a bad habit of the elders, but there are still many relatively backward and closed areas. Consanguineous marriage will lead to the 'meeting' of the common recessive pathogenic gene in the family carried by both men and women. This kind of 'meeting' can easily lead to the disease of pathogenic gene, resulting in the deformity of offspring.

Supplement folic acid correctly

Folic acid was taken from the first 3 months of pregnancy, and the embryo began to form the embryonic nervous system within 3 months of pregnancy. Folic acid should also be supplemented continuously. Because exactly what we know is neural tube dysplasia, such as anencephalia, hydrocephalus, spina bifida and so on. These neural system dysplasia are related to folic acid deficiency in pregnant women, which is now recognized by all countries, including the world.

Be cautious in early pregnancy

The first trimester of pregnancy is the most vulnerable period for fertilized eggs to be affected by the outside world. We should avoid contacting pesticides and drugs, and spend the first trimester of pregnancy carefully and safely.

Both husband and wife should take pre pregnancy physical examination seriously

Stop smoking and drinking for at least half a year before you get pregnant