Identify growth restriction (IUGR)
Babies who are small for gestational age or showing poor growth may benefit from increased surveillance, Doppler studies, and timely delivery – which can reduce the risk of stillbirth and neonatal complications.
A growth scan is a detailed ultrasound performed in the third trimester – usually between 28 and 40 weeks – to measure your baby's size, estimate their weight, and assess the amniotic fluid volume and placental health. It is an essential tool for monitoring fetal growth and detecting potential problems such as growth restriction (IUGR) or macrosomia (excessive growth).
Unlike the anatomical survey at 20 weeks, a growth scan focuses on biometry – measuring the baby's head, abdomen, and femur – to calculate an estimated fetal weight (EFW). It also evaluates the amount of amniotic fluid (amniotic fluid index or deepest vertical pocket) and the appearance of the placenta. In some cases, Doppler studies of the umbilical artery or fetal vessels are added to assess blood flow and placental function.
At Amytri, our growth scans are performed by consultant radiologists with expertise in fetal medicine. We use high‑resolution ultrasound and follow evidence‑based protocols to provide accurate measurements and a clear assessment of fetal wellbeing. Our reports include growth percentiles, fluid assessment, and recommendations for further monitoring or delivery planning.
Growth scans help identify babies who are growing too slowly or too quickly, allowing for timely interventions and better outcomes.
Babies who are small for gestational age or showing poor growth may benefit from increased surveillance, Doppler studies, and timely delivery – which can reduce the risk of stillbirth and neonatal complications.
Accurate assessment of fetal weight and amniotic fluid helps your obstetrician decide the safest timing and mode of delivery – whether induction, scheduled cesarean, or continued monitoring.
For the majority, a growth scan shows a baby growing appropriately and adequate fluid – providing reassurance that all is well as you approach your due date.
Our growth scan is comprehensive, covering all the key indicators of fetal health and growth.
We measure biparietal diameter (BPD), head circumference (HC), abdominal circumference (AC), and femur length (FL) to calculate estimated fetal weight (EFW) and plot growth percentiles.
We measure the amniotic fluid index (AFI) or deepest vertical pocket to assess for polyhydramnios (too much fluid) or oligohydramnios (too little) – both of which can indicate underlying problems.
We evaluate placental location, grade (maturity), and any abnormalities such as placenta previa or placental lakes that could affect fetal nutrition.
We check whether the baby is cephalic (head down), breech, or transverse – critical information for delivery planning.
In selected cases, we perform Doppler ultrasound of the umbilical artery, middle cerebral artery, or uterine arteries to assess blood flow and placental function.
When clinically indicated, we include assessment of fetal movements, tone, and breathing movements – part of a biophysical profile (BPP).
We recommend booking based on your obstetrician's advice – typically between 28 and 40 weeks. You can book directly or as part of your ongoing care.
In the third trimester, a full bladder is usually not required – you can eat and drink normally before the scan.
We take multiple measurements, assess fluid, placenta, and perform Doppler if needed. The scan takes 20‑30 minutes and is painless.
We review the growth percentiles, fluid status, and any other findings with you on the spot. You'll receive a detailed report for your records and your doctor.
While not always routine, growth scans are frequently performed in the third trimester when there are specific indications or maternal risk factors.
If you've had a previous pregnancy affected by intrauterine growth restriction (IUGR), close monitoring in subsequent pregnancies is essential.
Conditions like pre‑eclampsia or gestational diabetes can affect fetal growth and fluid balance – serial growth scans help guide management.
If your bump measurements are not tracking your weeks, a growth scan can verify whether your baby is growing appropriately.
Twins or triplets need regular growth scans to monitor each baby's growth and look for discordance or twin‑to‑twin transfusion syndrome.
Beyond 40 weeks, growth scans help assess the baby's size, fluid levels, and placenta to guide decisions about induction.
If you notice decreased movements or have any concerns, a growth scan with Doppler can provide reassurance and identify any issues.
Our consultant radiologist has extensive experience in third‑trimester ultrasound, including growth assessment, Doppler studies, and biophysical profiling. We combine technical expertise with a compassionate approach – ensuring you receive accurate information and clear guidance for the final weeks of your pregnancy.
Seeing your baby's growth and size in the third trimester is a wonderful experience – we warmly encourage your partner to be present.
Our scan room is comfortable, and we have a screen for both of you to watch. We explain the measurements, percentiles, and fluid assessment as we go. If any concerns arise, we discuss them sensitively and provide a clear plan – so you both leave with complete understanding.
A growth scan is a third‑trimester ultrasound that measures your baby's size (head, abdomen, femur) to estimate weight, assesses amniotic fluid, and checks placental health. It helps monitor fetal growth and wellbeing.
Typically between 28 and 40 weeks of pregnancy. The timing depends on your risk factors, any concerns, and your obstetrician's recommendations.
In the third trimester, a full bladder is usually not needed – the baby and uterus are large enough to be seen clearly. You can eat and drink normally before the scan.
The estimated weight has a margin of error of about 10‑15%. It is a valuable guide but not an exact prediction. Serial scans (several over time) are more useful to assess growth trends.
If growth restriction is suspected, we may recommend additional scans, Doppler studies, and closer monitoring. Your obstetrician will discuss the best plan for timing and mode of delivery to ensure your baby's safety.
No, you can book directly. If you are under obstetric care, we will share the report with your doctor for coordinated management.
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