Question
What are the causes of Down Syndrome?
Answer
Down Syndrome is a congenital defect disease caused by chromosomal structural abnormalities. The causes include genetic factors, with about 10% of cases due to an extra chromosome from the father; teratogenic substances in the environment, such as radiation, are also triggers, and if pregnant women are exposed to radiation before or during pregnancy, it increases the risk of the fetus developing Down Syndrome; in addition, the mother’s age is a significant factor affecting the incidence rate of Down Syndrome. The older the pregnant woman, the higher the chance of the fetus being affected.