What is the foetal pole in relation to a pregnancy ultrasound?
The foetal pole is one end of the pregnancy sac that is seen on ultrasound. It is used as a marker for measurements of size of the foetal sac. Last reviewed: 05/01/2007 Disclaimer These answers provide general information endorsed by our experts at time of publication. They are not intended to take the place of medical advice. Please seek advice from a qualified health care professional.