What is a child with Down syndrome?
Generally, children with Down syndrome refer to those who experience a series of intellectual and physical developmental problems due to abnormalities in chromosome 21. It is recommended to seek timely medical attention and undergo symptomatic treatment under a doctor's guidance. A detailed explanation is as follows:

Down syndrome is a chromosomal abnormality caused by the presence of an extra copy of chromosome 21 in affected children. This abnormality typically occurs during embryonic cell division, leading to abnormal chromosome separation. Early medical examinations, such as prenatal screening, amniocentesis, or chorionic villus sampling can diagnose Down syndrome. Once diagnosed, children can receive early interventions, including physical therapy, speech therapy, and special education, which can help them develop their potential and improve their quality of life.
To help prevent Down syndrome, it is recommended that women give birth at the optimal childbearing age and undergo preconception health checkups at the hospital. During pregnancy, regular prenatal examinations should be performed, such as nuchal translucency (NT) measurement, biochemical Down syndrome screening, and non-invasive prenatal DNA testing, to rule out chromosomal abnormalities.