Down Syndrome | Birth Defects | CDC - Centers for Disease …
2024年10月28日 · Down syndrome is a genetic condition where a person is born with an extra chromosome. This can affect how their brain and body develop. People diagnosed with Down syndrome can lead healthy lives with supportive care.
Down syndrome - Symptoms and causes - Mayo Clinic
2024年11月12日 · Most children with Down syndrome have mild to moderate cognitive impairment. This means that they have problems with memory, learning new things, focusing and thinking, or making decisions that affect their everyday life.
Living with Down Syndrome | Birth Defects | CDC - Centers for …
2024年5月16日 · Down syndrome is the most common chromosomal condition diagnosed in the United States. Families and healthcare providers in the United States have learned over time how to improve care for people living with Down syndrome. Children with Down syndrome are living longer, many into their adult years.
Down Syndrome: Causes, Symptoms, Diagnosis, and Treatment - WebMD
2024年2月23日 · Can people with Down syndrome have children? About half the women with Down syndrome are fertile, but most of the men with this condition are infertile.
Down Syndrome - NICHD - Eunice Kennedy Shriver National …
2023年11月22日 · Children with Down syndrome may experience behavioral and emotional problems, including anxiety, depression, and attention-deficit/hyperactivity disorder. They might also display repetitive movements, aggression, autism, psychosis, or social withdrawal.
About Down Syndrome | National Down Syndrome Society (NDSS)
2021年4月6日 · Down syndrome occurs in people of all races and economic levels, though older women have an increased chance of having a child with Down syndrome. A 35-year-old woman has about a one in 350 chance of conceiving a child with Down syndrome, and this chance increases gradually to 1 in 100 by age 40.
Developmental Milestones for Children With Down Syndrome
2024年9月16日 · The American Academy of Pediatrics recommends that children and adolescents with Down syndrome receive anticipatory guidance regarding development and behavior. However, few tools provide specific guidance on developmental norms for children with Down syndrome.
Down Syndrome (Trisomy 21) in Children
Key points about Down syndrome in children; Down syndrome (trisomy 21) is a genetic disorder. It includes certain birth defects, learning problems, and facial features. A child with Down syndrome also may have heart defects and problems with vision and hearing.
Trisomy 21 (Down Syndrome) - Children's Hospital of Philadelphia
Also known as Down syndrome, trisomy 21 is a genetic condition caused by an extra chromosome. Most babies inherit 23 chromosomes from each parent, for a total of 46 chromosomes. Babies with Down syndrome however, end up with three chromosomes at position 21, instead of the usual pair. Other examples of trisomies occur at position 13 and 18.
About Down Syndrome | NICHD - NICHD - Eunice Kennedy …
2023年11月22日 · Down syndrome describes a set of cognitive and physical symptoms that result from an extra copy or part of a copy of chromosome 21. Chromosomes carry the genes that tell the body to develop in certain ways and to perform certain functions.