A growth scan is an ultrasound test performed during pregnancy to assess the baby's growth and development. Typically conducted in the third trimester, this scan provides valuable information about the baby's health and the pregnancy's progress. Growth scans play a key role. If you’ve heard your doctor mention them or wonder why you might need ultrasound in the third trimester, this blog will help. The Growth Scan is a standard part of prenatal care , offering detailed information about the baby’s weight, size, position, and the condition of the placenta and amniotic fluid levels. What is a Growth Scan ? A growth scan or a fetal wellbeing scan is taken between the 23rd and 40th weeks of gestation. It is a standard procedure done to check the baby’s development inside the womb and the amniotic fluid level in the uterus. During the growth scan , the doctor checks for the position of the baby to decide on the mode of delivery (vaginal birth or c-section).