What is Down syndrome? Down syndrome is a genetic condition that happens when a child is born with an extra chromosome. The extra chromosome affects the way the child’s brain and body develop, leading to developmental delays, intellectual disability and an increased risk for certain medical issues.
How do you explain Down syndrome to a child?
You have probably seen people who have Down syndrome. They have certain physical features, such as a flatter face and upward slanting eyes. They may have medical problems, too, such as heart defects. Kids with Down syndrome usually have trouble learning and are slower to learn how to talk and take care of themselves.
What is Down syndrome in your own words?
Down syndrome (DS), also called Trisomy 21, is a condition in which a person is born with an extra chromosome. Chromosomes contain hundreds, or even thousands, of genes. Genes carry the information that determines your traits (features or characteristics passed on to you from your parents).
What is Down syndrome summary?
Down syndrome is a condition in which a person is born with an extra copy of chromosome 21. People with Down syndrome can have physical problems, as well as intellectual disabilities. Every person born with Down syndrome is different. People with the syndrome may also have other health problems.
Can a child with Down syndrome look normal?
Some of the children with Mosaic Down syndrome that we know do not actually look as if they have Down syndrome – the usual physical features are not obvious. This raises some important and difficult social issues and identity issues for both parents and children, which parents have discussed with us.
What are the 3 types of Down syndrome?
There are three types of Down syndrome:
- Trisomy 21. This is by far the most common type, where every cell in the body has three copies of chromosome 21 instead of two.
- Translocation Down syndrome. In this type, each cell has part of an extra chromosome 21, or an entirely extra one. …
- Mosaic Down syndrome.
How is Down syndrome detected?
amniocentesis, a prenatal diagnosis method in which a needle is inserted into the amniotic sac that surrounds the fetus. Amniocentesis is most often used to detect Down syndrome and other chromosomal abnormalities. This test is usually done in the second trimester, after 15 weeks of gestation.
Is Down syndrome a disability?
Down syndrome is the most frequent chromosomal cause of mild to moderate intellectual disability, and it occurs in all ethnic and economic groups. The degree of intellectual disability in people with Down syndrome varies but is usually mild to moderate.
What part of the body does Down syndrome affect?
Down syndrome, the most common chromosome-related genetic condition in the U.S., affects development of the brain and body. People with Down syndrome face physical and mental challenges, but can lead full and happy lives.
What age does Down syndrome occur?
It is determined by many factors, but research suggests that there is a higher chance if the mother is older than 35 years of age. Before the age of 30, Down syndrome occurs in fewer than 1 in 1,000 pregnancies. After the age of 40, this figure rises to about 12 in 1,000.