There are many causes of fetal arrest, including embryonic factors, maternal factors, paternal factors and environmental factors.
1. Embryonic factors: embryonic chromosomal abnormalities may cause the embryo to stop developing, of which the more common are chromosomal abnormalities of trisomy 13, trisomy 16, trisomy 18 and trisomy 21.
2. Maternal factors: it may be due to the mother’s own immunity is relatively poor or caused by infections, the more common is viral infections, such as rubella virus, cytomegalovirus infections, etc., may lead to embryo sterilizations.
3. Father factor: If the father’s sperm has chromosomal abnormalities, it may lead to embryonic sterilizations.
4. Environmental factors: It may be due to the exposure to arsenic, lead, formaldehyde, benzene and other chemicals and X-ray radiation during pregnancy, which may lead to fetal sterilizations.
If during pregnancy pregnant women consciously stop fetal movement, the uterus stops growing or vaginal bleeding and abdominal pain, the examination can not hear the fetal heart should be alert to the possibility of stillbirth and miscarriage, need to go to the hospital in a timely manner to find out the cause.