What is the cause of deformed hands and feet in newborns?

If a child has deformed hands and feet, it will be a huge blow to the parents and even have a great impact on the child's future life. There are many reasons for the deformity of hands and feet in newborns, including congenital genetic reasons and bad living habits of pregnant women during pregnancy. For example, improper use of medication, viral infection, etc. during the third month of pregnancy.

1. Be cautious with medication before 3 months of pregnancy

The most sensitive period for drugs to cause teratogenic effects on the fetus is within 3 months of pregnancy. During this period, the fetus's organs begin to develop, the synthesis of various proteins and lipids is active, and cells differentiate rapidly, finally forming various organs and tissues. If drugs interfere with the synthesis and differentiation of organ cells, it will cause fetal organ malformations. Using one drug over a period of time may cause malformations in multiple organs, or multiple drugs may cause one malformation together. After 3 months of pregnancy, all organs are basically developed and deformities will generally not occur if drugs are used thereafter.

2. Viral infection causes fetal malformation

In the early stages of pregnancy, there are some examinations that pregnant mothers must do, including teratogenic virus tests. The vast majority of deformed babies are related to viruses, so pregnant mothers must pay special attention during prenatal examinations.

The incidence of viral infection during pregnancy is higher than that of normal women, and almost most viruses can be transmitted to the fetus. Among them, rubella virus, cytomegalovirus, varicella-zoster virus, etc. have serious effects on the fetus. Virus infection during pregnancy can cause miscarriage, premature birth, stillbirth, intrauterine growth retardation and low birth weight, and can lead to congenital malformations and other systemic changes in surviving fetuses.

Most fetal malformations are related to infection with these viruses. The most terrifying thing is that pregnant mothers may have no symptoms or some mild discomfort after being infected with these viruses, and these discomforts will disappear without any treatment. But what is left to the fetus is endless disaster. There is no cure for most viral infections.

3. Viruses are at work

It is imperative to test for teratogenic viruses during early pregnancy, including: rubella virus, cytomegalovirus, B19 parvovirus, varicella virus and toxoplasmosis. Not only is it required to check the IgM of each virus, but also the IgG, because the former indicates that the pregnant woman is currently infected with the virus, while the latter indicates that the pregnant woman has been infected.