Patient's question:
NoDoctor's answer:
Hello, Down syndrome is also known as Trisomy 21 syndrome, congenital idiocy, or Down syndrome. It is a chromosomal abnormality of autosomes and the most common type of pediatric chromosomal disease. The incidence rate in live births is approximately 1/(600–800). The older the mother, the higher the incidence of this disease. 60% of affected fetuses die or are aborted in the early stages of pregnancy. Down syndrome encompasses a series of genetic diseases, the most representative of which is the trisomy of chromosome 21, which leads to severe abnormalities including learning disabilities, intellectual disabilities, and disabilities. Generally, around the 15th to 20th week of pregnancy, a blood chromosome test can determine whether the disease is present. This test can be performed in most general gynecology and obstetrics hospitals. If diagnosed as high-risk, amniocentesis can be performed to extract amniotic fluid for a more accurate examination, but it carries certain risks.