The baby’s lack of a fetal heart may be due to the fact that the baby has not yet developed and differentiated a fetal heart, or it may be due to other disease factors such as embryonic arrest.
1. Physiological factors: If the fertilized egg has just been laid and the weeks of the embryo are too small, it may result in the baby not having developed a fetal heart yet. Usually the baby will not form a fetal heart until around 8 weeks of pregnancy.
2. Embryonic Arrest: Fetal factors, maternal factors, environmental factors and other factors may lead to embryonic arrest, which in turn may lead to the phenomenon that the baby does not have a fetal heart.
(1) Fetal factors: fetal chromosomal abnormalities, fetal developmental abnormalities and other conditions may lead to embryonic arrest.
(2) Maternal factors: Pregnant women with mediastinal uterus, congenital luteal insufficiency, severe anemia, heart disease, high blood pressure and other diseases may affect the blood circulation of the placenta, resulting in embryonic sterilizations.
(3) Environmental factors: If a pregnant woman is exposed to toxic and harmful substances such as radiation or rays for a long time, it may also lead to embryonic sterilizations.
To sum up, when the reason for the baby’s lack of fetal heartbeat is still unclear, it is recommended to consult a doctor in time to find out the cause and ask the doctor to dispose of it.