
Down Syndrome: Causes, Symptoms, Diagnosis, and Treatment - WebMD
Jan 24, 2026 · People with Down syndrome have an extra chromosome that impacts their looks and their ability to think, learn, and reason. Discover the type, causes, and kinds of effects it can have.
Down's syndrome - NHS
Down's syndrome is when you're born with an extra chromosome. You usually get an extra chromosome by chance, because of a change in the sperm or egg before you're born.
What are the symptoms of Down syndrome? - NICHD
The symptoms of Down syndrome vary from person to person, and people with Down syndrome may have different problems at different times of their lives.
About Down Syndrome | National Down Syndrome Society (NDSS)
Apr 6, 2021 · How common is Down syndrome? According to the Centers for Disease Control and Prevention, approximately one in every 640 babies in the United States is born with Down syndrome, …
Edwards' syndrome - NHS
Find out about Edwards’ syndrome (trisomy 18) including the symptoms, types, how it's diagnosed and what causes it.
Advice for new parents - NHS
Babies with Down's syndrome are like any newborn babies. They'll be eating, sleeping, crying, and needing love and cuddles just like all babies.
Down syndrome: MedlinePlus Genetics
Down syndrome is a chromosomal condition that is associated with intellectual disability, a characteristic facial appearance, and weak muscle tone (hypotonia) in infancy. Explore symptoms, inheritance, …
What are early signs and symptoms of down syndromes in newborns?
Mar 30, 2024 · Early signs and symptoms of down syndromes, for some parents, concerns may arise if their baby exhibits certain characteristics. Down syndrome is a genetic
Recognizing Down Syndrome in Pregnancy: Signs & Screening
The chances of the baby having Down syndrome can be estimated during pregnancy while screening, but there won't be any signs for a pregnant woman that she is having a baby with this condition.
Down Syndrome: Facts and Statistics - Verywell Health
Mar 6, 2026 · Down syndrome happens when a baby gets an extra copy of chromosome 21. More than 200,000 people in the United States live with Down syndrome. Typical health issues for people with …