What are the Factors that Cause Down Syndrome?

Researchers know that Down syndrome is caused by an extra chromosome, but no one knows for sure why Down syndrome occurs or how many different factors play a role. One factor that increases the risk of having a baby with Down syndrome is the mother’s age. Women who are 35 years or older when they become pregnant are more likely to have a baby with Down syndrome. There are tests that doctors can run during a pregnancy to determine if the baby will have Down syndrome. No type of test can predict the full impact of Down syndrome on a baby.

Treating Down syndrome is a lifelong condition. Services early in life will often help babies and children with Down syndrome to improve their physical and intellectual abilities. These services include speech, occupational, and physical therapy, and they are typically offered through early intervention programs in each state. Children with Down syndrome may also need extra help or attention in school, although many children are included in regular classes.