Parents to be: how can down syndrome be caused

summary

In fact, every prenatal examination during pregnancy is very important. For example, some fetal defects can be detected. Down's syndrome is one of them. Down's syndrome is a common pediatric disease, which is mainly caused by chromosomal aberration. Sixty percent of the fetuses suffering from Down's syndrome in the fetal period will miscarry in the early fetal period. How can down's syndrome be caused? Let me introduce it to you.

Parents to be: how can down syndrome be caused

First: genetic factor is a very important cause of Down's syndrome, because Down's syndrome is due to the mutation of the patient's gene. There is one more chromosome 21, and generally male patients have no fertility, while female patients will have genetic diseases if they have offspring.

Second: the incidence rate of Down's syndrome is directly related to the age of the mother. The higher the age is, the more likely the child will produce the children with Down syndrome. As the age increases, the mother's egg quality will decrease, and the chance of causing the twenty-one chromosomal abnormalities will increase.

Third: the pathogenic factors in late pregnancy can also cause the fetus to suffer from Down's syndrome. For example, pregnancy sepsis can easily lead to insufficient blood supply to the fetus and affect the oxygen supply to the fetal brain tissue, which can easily cause fetal growth retardation and toxic damage.

matters needing attention

The heredity of Down's syndrome is very strong, so in line with the principle of eugenics, it is suggested that patients with Down's syndrome terminate pregnancy. For those parents who have given birth to a sick child, the risk of having another child will be very high, so more attention should be paid.