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Down Syndrome

What is Down syndrome?

Down syndrome is a condition in which a person has an extra chromosome or an extra piece of a chromosome. This extra copy changes how a baby's body and brain develop. It can cause both mental and physical challenges during their lifetime. Even though people with Down syndrome might act and look similar, each person has different abilities.

What causes Down syndrome?

Chromosomes are tiny "packages" in your cells that contain your genes. Genes carry information, called DNA, that controls what you look like and how your body works. People with Down syndrome have an extra copy of chromosome 21. In some cases, they may have an extra copy of part of the chromosome. Having an extra copy of a chromosome is called trisomy. So sometimes Down syndrome is also called trisomy 21.

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Results 1 - 10 of 1,887 for Down syndrome
  1. Down Syndrome (National Library of Medicine)  
    What is Down syndrome? Down syndrome is a condition in which a person has an extra chromosome or an extra piece of a chromosome. This extra ... challenges during their lifetime. Even though people with Down syndrome might act and look similar, each person has ...
    https://medlineplus.gov/downsyndrome.html - Health Topics
  2. Down Syndrome Tests: MedlinePlus Medical Test 
    Down Syndrome Tests What are Down syndrome tests? Down syndrome tests check whether a developing fetus may have Down syndrome , a chromosome disorder caused by having an extra ... in the uterus. Why do I need a Down syndrome test? Medical researchers recommend that everyone, regardless of ... and cons of these tests. What happens during Down syndrome testing? For a blood test , a health care ...
    https://medlineplus.gov/lab-tests/down-syndrome-tests - Medical Tests
  3. Down syndrome 
    Down syndrome is a chromosomal condition that is associated with intellectual disability, a characteristic facial appearance, and weak ... disability is usually mild to moderate.People with Down syndrome often have a characteristic facial appearance that includes ...
    https://medlineplus.gov/genetics/condition/down-syndrome - Genetics
  4. Down syndrome 
    Down syndrome is a genetic condition in which a person has 47 chromosomes instead of the usual 46. ... In most cases, Down syndrome occurs when there is an extra copy of chromosome 21. This form of Down syndrome is called trisomy 21. ...
    https://medlineplus.gov/ency/article/000997.htm - Medical Encyclopedia
  5. National Down Syndrome Society (National Down Syndrome Society)  
    ... NDSS Athlete Ambassador Team Get Involved Celebrate World Down Syndrome Day! Learn more NDSS' mission is to create a world where individuals with Down syndrome thrive . LuMind IDSC merges into NDSS The National ...
    https://ndss.org - Other Resources
  6. Nuchal translucency test 
    ... Measuring this thickness helps assess the risk for Down syndrome and other genetic problems in the baby. ... back of their neck. In a baby with Down syndrome or other genetic disorders, there is more fluid ...
    https://medlineplus.gov/ency/article/007561.htm - Medical Encyclopedia
  7. About Down Syndrome (National Down Syndrome Society)  
    Down Syndrome/Start Here ... Down Syndrome ... National Down Syndrome Society ... In every cell in the human body there is a nucleus, where genetic material is stored ...
    https://ndss.org/about - External Health Links
  8. About Down Syndrome From the National Institutes of Health (National Human Genome Research Institute)  
    Down syndrome is a chromosomal condition related to chromosome 21.
    https://www.genome.gov/Genetic-Disorders/Down-Syndrome - External Health Links
  9. Blood Diseases and Down Syndrome (National Down Syndrome Society)  
    Blood Diseases & Down Syndrome
    https://ndss.org/resources/blood-diseases-syndrome - External Health Links
  10. Surgery and Down Syndrome (National Down Syndrome Society)  
    Down Syndrome/Related Issues ... Down Syndrome ... Anesthesia/Related Issues ... Anesthesia ... National Down Syndrome Society ... Surgery & Down Syndrome
    https://ndss.org/resources/surgery-down-syndrome - External Health Links
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