A detailed fetal well-being scan is carried out to check on the health growth and position of the foetus before the birth. This scan is usually carried between 28 to 39 weeks of pregnancy. What is the aim of the scan: To measure the size of the foetal head abdomen and thigh bone calculate and estimate the foetal weight. To examine the movements of the foetus. To evaluate the placenta position and appearance. Positional changes in the placenta can lead to complications during labour. To assess the blood flow to the placenta and foetus through colour Doppler ultrasound. To assess