Down syndrome
Also called: trisomy 21
A genetic chromosome 21 disorder causing developmental and intellectual delays.
- Treatment can help, but this condition can't be cured
- Requires a medical diagnosis
- Lab tests or imaging often required
Down syndrome is a genetic disorder caused when abnormal cell division results in extra genetic material from chromosome 21.
Common: More than 200,000 US cases per year
Consult a doctor for medical advice
Sources: Mayo Clinic and others. Learn more
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6 days ago · Down syndrome is a condition in which a person has an extra chromosome. Chromosomes are small “packages” of genes in the body. They determine ...
All three types of Down syndrome are genetic conditions (relating to the genes), but only 1% of all cases of Down syndrome have a hereditary component (passed ...
Mar 8, 2018 · Down syndrome is a genetic disorder caused when abnormal cell division results in an extra full or partial copy of chromosome 21.
Jan 26, 2024 · 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 ...
Down syndrome or Down's syndrome, also known as trisomy 21, is a genetic disorder caused by the presence of all or part of a third copy of chromosome 21.
Jan 31, 2023 · Down syndrome is a genetic condition where a person has an extra copy of chromosome 21 for a total of 47 chromosomes instead of 46.
Down syndrome affects kids' ability to learn in different ways, and most have mild to moderate intellectual disability. Kids can and do learn, and they can ...
Feb 23, 2024 · Down syndrome is a genetic condition that causes mild to significant physical and developmental problems. People with Down syndrome (DS) are ...
Trisomy 21, also known as Down syndrome, is the most common chromosomal anomaly in humans and can cause intellectual disabilities and health issues.
Down syndrome is the most common genetic condition in the United States. We'll explain the causes, symptoms, and outlook of this condition.