Are multiple ultrasounds safe?

Ultrasounds are safe because it does not involve x-rays or radiation. Important ultrasound milestones include dating scan during the 1st trimester, fetal abnormality scan at 20 weeks to look for organ defects, and the growth scan during the 3rd trimester. Multiple ultrasound examinations during pregnancy is unlikely to cause any lasting harm to the developing fetus, according to a new study that confirms the long-term safety of the commonly used procedure. Doppler ultrasound scan measures the blood flow and pressure in the umbilical cord blood vessels and the fetal brain blood vessels. This is used to access healthy growth of the baby, but is not routinely done unless the OBGYN suspects that there is growth retardation of the fetus. It is routinely done for multiple pregnancies.