Down syndrome is a congenital disease caused by chromosomal abnormalities, which places a heavy burden on families and society. However, with the help of early Down screening, it can effectively reduce the number of Down

incidence of syndrome. This article will elaborate on the relevant knowledge of Down's syndrome to help everyone better understand this disease.

1. Definition of Down syndrome

Down's syndrome, also known as trisomy 21 syndrome, is caused by an abnormality in the 21st pair of chromosomes in a pregnant woman during pregnancy, resulting in an extra chromosome in the fetus. This chromosomal abnormality causes Tang

's syndrome children present with severe mental retardation, special facial features, and mental and physical development delay. In addition, children with Down syndrome may also have a variety of serious multiple malformations and diseases

Diseases, such as congenital heart disease, digestive tract malformation, congenital hypothyroidism, leukemia, etc.

2. The importance of Down's screening

Down's screening is a test for pregnant women. Its purpose is to screen out high-risk groups with a higher risk of developing Down's syndrome so that follow-up diagnostic examinations can be carried out. Although the current Down's

There is no cure for syndrome, but through early screening and diagnosis, the incidence of Down syndrome can be effectively reduced, thereby reducing the burden on families and society.

3. Answers to Tang Shai frequently asked questions

1. Can Down's screening determine the gender of the fetus?

Down's screening mainly evaluates the risk of the fetus developing Down syndrome by detecting indicators such as chorionic gonadotropin (hCG) in pregnant women, and cannot determine the gender of the fetus.

1. What are the Down screening methods?

Common Down screening methods include serological screening, echocardiography screening, etc. Serological screening evaluates the risk of the fetus developing Down syndrome by detecting specific hormone levels in pregnant women

Echocardiographic screening is to determine whether the fetus has Down syndrome by observing the heart structure of the fetus.

1. What is the Down screening reference range?

The reference range for Down's screening will vary depending on factors such as the age, weight, and gestational age of the pregnant woman. Doctors will select appropriate screening methods and reference ranges for pregnant women based on specific circumstances.

1. How to interpret Down's screening results?

Down's screening results are usually expressed as a risk ratio. If the risk ratio is above a specific threshold, it is considered a high risk and subsequent diagnostic tests are required.

1. What should I do if there is a high risk of Down's screening?

Pregnant women at high risk of Down's screening should undergo diagnostic tests, such as amniotic fluid puncture, villous sampling, etc., as soon as possible to determine whether the fetus does have Down's syndrome.

4. Which women are easy to conceive Down's children?

Advanced pregnancy, chromosomal abnormalities in one spouse, lack of folic acid, and exposure to adverse environmental factors during pregnancy preparation are all high risk factors for Down's syndrome. Therefore, these women should be extra

during pregnancy

Pay attention to Down's screening to reduce the incidence of Down's syndrome.

To sum up, Down syndrome is a serious birth defect that places a huge burden on patients and their families. Understand Down's syndrome, actively participate in Down's screening, and take effective preventive measures

Treatment is the key to reducing the incidence of Down syndrome. It is hoped that through the introduction of this article, more people will be able to understand Down's syndrome, actively participate in Down's screening, and work together to reduce the incidence of Down's syndrome

Productivity contribution.