Hello doctor. Doctor, can you tell me if a nuchal translucency of 0.8 to 0.9 mm is considered normal? Thank you for your advice.

Hello doctor! I am 12 weeks pregnant, the ultrasound result is 4.3 nuchal translucency. I went to the obstetrics and gynecology hospital for amniocentesis at 17 weeks.

Children with Down syndrome often reach developmental milestones a little later than their peers. If you have had one child with Down syndrome, your risk of having a second child with Down syndrome is slightly increased.

Down syndrome in children is not uncommon and it has a serious impact on the child's development. If a pregnant woman gives birth to one child with Down syndrome, the risk of the second child also having Down syndrome increases slightly.

Chromosomes are DNA packaging structures found inside the body's cells. Humans have 23 pairs of chromosomes (46 total). One copy of each pair comes from the mother (egg), the other copy comes from the father (sperm).

When you are pregnant, you will be tested to screen for fetal abnormalities. If any abnormalities are detected, your doctor may recommend a karyotype to determine whether your baby has any genetic or chromosomal problems.

Karyotype test is also known as chromosome set, karyotype. This is a test to examine the chromosome set of a person in a cell. Karyotype test is indicated for people who have had many consecutive miscarriages and in some other cases.

Nowadays, with the advancement of medicine, prenatal screening and diagnosis have brought practical benefits to many families. So during pregnancy, what tests do pregnant women need to do? The information below can be very useful for pregnant mothers.