Pregnant expectant mothers must be very concerned about the health of their fetus. As the fetus continues to develop, various organs in the body will also continue to develop. Some pregnant women may be found to have abnormal fetal development during examinations, such as widening of the posterior cranial fossa. What is the reason for the widening of the posterior cranial fossa?
The reasons for the widening of the posterior cranial fossa in fetuses are complex, and a common cause is a lack of folic acid. This symptom belongs to a type of neural tube defect, which is closely related to folate metabolism disorders and folate deficiency. If pregnant women do not supplement sufficient folate in early pregnancy, it is easy to cause fetal neural tube defects, resulting in widened posterior cranial fossa.
Some fetuses have symptoms of widened posterior cranial fossa and are related to infection factors, such as pregnant women who have been infected with Toxoplasma gondii virus or cytomegalovirus in early pregnancy, which can easily lead to fetal neural tube defects. There are many manifestations of fetal neural tube defects, among which widening of the posterior cranial fossa is one of them.
Some pregnant women have been exposed to harmful substances or radiation in the early stages of pregnancy, which can affect the healthy development of the fetus, cause fetal malformations, and may also lead to symptoms of widened posterior cranial fossa. Pregnant women are advised to undergo further examinations in a timely manner, such as amniocentesis, to determine if the fetal chromosomes are normal.
