Prenatal Diagnosis of Genetic Diseases

Prenatal diagnosis means diagnosis before birth. It is a way for your doctor to see if your developing baby has a problem. The two main methods are amniocentesis and chorionic villus sampling (CVS). These tests help find genetic disorders before birth.

Some parents have increased risk of having a baby with a genetic disorder or other problem. They may want to have one of these tests. Knowing about problems before the baby is born may help parents. They may be able to make better decisions about health care for their infant. Certain problems can be treated before the baby is born. Other problems may need special treatment right after delivery. In some cases, parents may decide not to continue the pregnancy. Amniocentesis is usually performed during the 15th week of pregnancy or later. CVS is usually performed between the 10th and 12th weeks of pregnancy.

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