Down syndrome is a chromosomal condition that is associated with intellectual disability, a characteristic facial appearance, and weak muscle tone (hypotonia) in infancy. All affected individuals experience cognitive delays, but the intellectual disability is usually mild to moderate.
Is Down syndrome a physical or mental disability?
Down syndrome is the term for a set of cognitive and physical symptoms that can result from having an extra copy or part of a copy of chromosome 21. Down syndrome is the most frequent chromosomal cause of mild to moderate intellectual disability, and it occurs in all ethnic and economic groups.
Can a Down syndrome child 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.
How do Down syndrome babies behave?
At birth, babies with Down syndrome are often the same size as other babies, but they tend to grow more slowly. Because they often have less muscle tone, they may seem floppy and have trouble holding their heads up, but this usually gets better with time.
What are the signs of Down syndrome during pregnancy?
Some common physical signs of Down syndrome include:
- Flat face with an upward slant to the eyes.
- Short neck.
- Abnormally shaped or small ears.
- Protruding tongue.
- Small head.
- Deep crease in the palm of the hand with relatively short fingers.
- White spots in the iris of the eye.
Do Down syndrome babies cry differently?
Just like any baby, infants who have Down syndrome will sometimes be fussy. The temperament of a baby with Down syndrome is not usually any different from the temperament of any other baby.
What are the behavioral symptoms of Down syndrome?
Common learning and behavioral symptoms of Down syndrome include:
- Delays in speech and language development.
- Attention problems.
- Sleep difficulties.
- Stubbornness and tantrums.
- Delays in cognition.
- Delayed toilet training.