How other than by a test can you predict that a baby has down syndrome while still in the womb?

In addition to genetic testing, Down syndrome can be suggested through certain ultrasound markers observed during routine prenatal ultrasounds. These may include increased nuchal translucency, specific heart defects, or abnormal measurements of certain fetal structures. Additionally, maternal age is a risk factor; women over 35 have a higher likelihood of having a baby with Down syndrome, which may prompt closer monitoring and further evaluation. However, these indicators are not definitive and only testing can confirm the diagnosis.