Is it okay to have a 4D ultrasound at 17 weeks of pregnancy?

Patient's question:

No

Doctor's answer:

At 17 weeks of pregnancy, the amount of amniotic fluid is relatively low, and the fetus is also smaller, making it unsuitable for a 4D ultrasound examination. Even if there are any abnormalities, they may not be observable at this stage. It is recommended to perform the 4D ultrasound examination between 23 and 26 weeks of pregnancy.