thanks<font color ="#3b5998"><b> @636df5bb3f31520016a58177 </b></font><font color ="#3b5998"><b></b></font><font color ="#3b5998"><b></b></font>

A Doppler ultrasound assesses the blood flow in the various blood vessels like the umbilical cord the placenta and even the blood flow in the baby. Over all it can help give a over all picture of the health of the developing baby. It is done generally if the doctor feels that there is slow growth and then can be suggested at any time.