What is an anomaly scan done with?

The sonographer places gel on the abdomen and moves an ultrasound probe across the skin. Sound waves create images of the uterus, placenta, amniotic fluid and developing baby. The examination checks structures such as the brain, spine, heart, abdomen, kidneys and limbs, along with measurements and the baby’s position.

Two-dimensional ultrasound is the core examination. 3D or 4D ultrasound may provide extra views, but the baby’s position, movement, gestation and image quality can limit what is visible. A scan cannot identify every condition.

Follow the imaging unit’s instructions about bladder filling, food and arrival time. Wear clothing that allows access to the abdomen and bring any pregnancy records requested. The scan may take longer if the baby is facing away or moving frequently; changing position or returning for another view may help.

Ask how findings will be reported and whether a follow-up scan or specialist review could be recommended. A clear scan is reassuring but does not replace ongoing antenatal care.

Seek prompt maternity advice for vaginal bleeding, fluid loss, severe abdominal pain, painful regular contractions, fever with feeling unwell, or reduced fetal movement after you have been given movement guidance. These symptoms need assessment independently of an ultrasound appointment.

Is this a standard anomaly scan or is additional imaging planned? Which structures will be assessed? What happens if the view is incomplete? When will the findings be discussed with me?