Why does fetal growth retardation occur during pregnancy? What tests should be done after fetal growth retardation?

Fetal growth retardation is the last thing that expectant mothers and fathers want to encounter, after all, there is a little life to look forward to. Fetal growth retardation is actually unavoidable in many cases. If you encounter it, you must follow the doctor's advice. So why does fetal growth retardation occur during pregnancy? What tests should be done for subsequent pregnancies?

Why does the fetus stop growing when you are pregnant?

The common causes of fetal arrest in clinical practice include the following:

The embryo has chromosomal abnormalities or the fertilized egg is of poor quality

This is also quite common. Most of the reasons for fetal arrest are due to this. Chromosomal abnormalities include numerical abnormalities and structural abnormalities. The more serious the abnormality, the earlier the fetus will stop growing.

Similarly, poor quality of the fertilized egg may also lead to fetal arrest.

Maternal major organ disease

Severe infections, high fever diseases, thrombotic diseases, chronic liver and kidney diseases, etc. can all lead to fetal arrest.

Endocrine disorders, low progesterone

Low progesterone during pregnancy will directly affect the development of the fetus (the most common abnormal karyotype is triploidy, and trisomy 16 accounts for 1/3), resulting in fetal arrest. To be precise, the growth of the embryo is related to progesterone, and luteinizing disorders and dysfunction directly lead to low progesterone, resulting in fetal arrest.

Environmental factors

Excessive exposure to harmful, toxic substances and radiation can lead to fetal arrest.

What to do after pregnancy after fetal arrest

In the early stages of pregnancy, you must pay attention to the doubling of HCG in 48 hours. If the daily HCG doubling is not ideal, you can use a preventive dose of low molecular weight heparin for treatment first.

It is necessary to check coagulation factors and D-dimer, homocysteine, ACA and ANA of the autoimmune system, as well as the risk of folate metabolism, liver and kidney function, blood sugar, insulin, prolactin, etc. There are many items to be checked and the cost is high, and many items are generally not available in small hospitals.

Abnormal uterine development and endometrial problems can also cause fetal growth retardation, which requires a hysteroscopy. However, if you are already pregnant, you cannot do a hysteroscopy.

How long does it take for abortion to get pregnant again?

Generally speaking, it is recommended to wait at least six months or more after the fetus stops growing before getting pregnant. From the perspective of eugenics, it is best to get pregnant after one year. The end of pregnancy leads to miscarriage, and most miscarriages cause excessive damage to the endometrium. If the endometrium does not recover well, getting pregnant immediately will make it difficult for the fertilized egg to implant or fall off easily, which will lead to miscarriage.

Fetal arrest is usually caused by endocrine disorders, reproductive tract infections, immune deficiencies, uterine diseases, or (both) chromosomal abnormalities, so these connections must be checked one by one before the next pregnancy.