Can Down syndrome be prevented?
Down syndrome can’t be prevented, but parents can take steps that may reduce the risk.
The older the mother, the higher the risk of having a baby with Down syndrome. Women can reduce the risk of Down syndrome by giving birth before age 35. Women can also reduce the risk of their babies developing Down syndrome by taking folic acid supplements before and during pregnancy.
The chance of having a baby with Down syndrome increases if you have already had one child with the condition.