What is the cause of fetal defect?

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. What is the cause of fetal defect? Next, I'd like to share my views with you.

What is the cause of fetal defect?

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.

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. 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;

Hyperglycemia during pregnancy and poor blood glucose control during early pregnancy can increase the risk of fetal malformations, mainly congenital heart disease, neural tube malformation, cleft lip and palate, etc. Dietary factors and folic acid deficiency increase the risk of fetal neural tube defects and cleft lip and palate.

matters needing attention

1. Premarital medical examination, some diseases found through the examination, such as hepatitis B, sexually transmitted diseases, etc., these diseases will affect the health of future generations, cause fetal deformity, and can only be pregnant after cure; 2. Do a good job of preparation before pregnancy, so as to be prepared and planned for pregnancy, and carry out some necessary examinations, 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.