How can cause fetal malformation?

summary

Fetal malformation refers to the structural or chromosomal abnormalities in the uterus. Fetal malformations account for about 3% of live births. About 5 million babies with birth defects are born every year in the world, with an average of one every 5-6 minutes. More than 85% of them occur in developing countries. How can cause fetal malformation? Next, I'd like to share my views with you.

How can cause fetal malformation?

When the dose of radiation absorbed by the fetus in the first trimester is more than 5 rad, the risk of fetal malformation will increase significantly; The infection of pregnant women with certain microorganisms can lead to fetal infection and fetal malformations, such as rubella, giant cell, herpes simplex, Toxoplasma gondii, syphilis and so on.

Some chemicals can cause fetal malformation, especially in the early pregnancy, so the use of drugs in pregnancy should be under the guidance of doctors. Rural women should avoid exposure to pesticides during pregnancy. Long term heavy drinking can lead to fetal alcohol syndrome, manifested as microcephaly, mental retardation and special face. Heavy metals (mercury, lead, etc.) increase the risk of fetal malformations.

Deformity is caused by abnormal genetic material from parents. Such as: parents chromosome abnormalities, parents carrying mutant genes. Sometimes the zygote itself has chromosome segregation abnormality or gene mutation. When the consanguineous marriage is carried out, the incidence rate of some recessive diseases increases significantly because of the risk of carrying the same abnormal gene between the husband and wife, so the close relatives are not suitable for marriage or childbearing.

matters needing attention

Do a good job before pregnancy preparation, to be prepared, planned pregnancy, some necessary examination, such as rubella virus detection. Rubella virus infection can lead to congenital heart disease, congenital deafness, cataract and other malformations. Rubella vaccine can be used to prevent rubella virus infection.