autism

+13 Can Down Syndrome Develop Later In Pregnancy Education . 2 people with the syndrome also are more likely to be born with heart abnormalities, and they are at increased risk for developing hearing and vision problems, alzheimer disease, and other conditions. It can be that either the sperm or egg coming together during fertilization has an extra chromosome. What Every Mom With a Prenatal Down Syndrome Diagnosis Should Know from themighty.com 1 however, with appropriate support and. The chances of having a child with down syndrome increases with age, but the majority of mothers who have children with down syndrome are under the age of 35. Chromosomes and how they work to.