Patient's question:
Recently, my friend went to the hospital for a thorough examination and found out that she had been pregnant for some time. Following others' advice, she underwent a Down syndrome screening. The results showed a high risk of trisomy 21. I would like to ask, what are the reasons for the high risk in the Down syndrome screening?Doctor's answer:
The Down syndrome screening is a special type of examination method for prenatal screening of Down syndrome. Down syndrome children, also known as congenital idiocy, essentially refer to children with trisomy 21 chromosomal abnormalities. The recurrence of trisomy 21 in Down syndrome children is the main cause, and the main manifestations include intellectual disability, delayed physical and motor development, and special facial features. It may also lead to an increased risk of congenital deformities. These children can bring pressure to families and society, so it is hoped that screening can be done as early as possible during pregnancy to identify and prevent the occurrence of Down syndrome, thereby avoiding pressure and suffering. The reason for the occurrence of Down syndrome children is the recurrence of chromosomal abnormalities during the differentiation process of the fertilized egg. Any two couples can potentially have a Down syndrome child.