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Pregnancy Clinic

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Second trimester · 20 to 22 weeks · Sevenoaks, Kent

Anatomy Scan (20–22 Weeks)

Often called the anomaly scan or 20-week scan. A consultant-led scan that examines your baby’s development in detail, including the heart, and assesses the placenta, umbilical cord and blood flow.

  • 1-hour consultant-led appointment
  • Detailed assessment of your baby’s heart
  • 3D and 4D images at no extra cost
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Medically reviewed by Professor Ranjit Akolekar, MBBS, MD (Res), MRCOG, Consultant in Fetal Medicine and Obstetrics · Last reviewed October 2026

1-hour appointment

Anatomy scan from £300

A key milestone in pregnancy, giving you meaningful reassurance about the health of your whole pregnancy. Your anatomy scan includes:

  • 1-hour consultant-led appointment
  • Detailed assessment of your baby’s development
  • Placenta, cord and blood flow assessed
  • 3D and 4D images at no extra cost
Illustration of a baby at 20 weeks of pregnancy, with the placenta and umbilical cord

© The Pregnancy Clinic

What your anatomy scan includes

A detailed assessment of your baby, the placenta and the cord.

Detailed anatomy

A systematic check of the brain, face, spine, abdomen, kidneys and limbs to identify or rule out most major problems.

Your baby’s heart

A detailed assessment of the heart’s chambers, valves and major blood vessels, as part of every anatomy scan.

Growth and fluid

Assessment of your baby’s growth and well-being, and the amount of amniotic fluid around your baby.

The placenta

Where the placenta lies in relation to the neck of the womb and, after a previous caesarean, its relationship to the scar.

Umbilical cord and vasa praevia

Where the cord joins the placenta, to rule out freely lying blood vessels near the neck of the womb (vasa praevia).

Placental blood flow

Uterine artery Doppler, assessing placental function and the risk of pre-eclampsia and growth restriction.

Choose your anatomy scan

Clear prices, with every scan performed by a consultant.

OptionWhat is includedPrice
Early anatomy scan16–18 weeksAn earlier detailed look at your baby’s development, for extra reassurance before 20 weeks£225
Detailed anatomy scan20–22 weeksDetailed anatomy and heart assessment, growth, placenta, cord, Doppler, report, and 3D and 4D images£300
Anatomy scan + cervical length20–22 weeksSave £50Everything in the detailed anatomy scan, plus a measurement of the cervix to assess the risk of preterm birth£350
Cervical length scan16–24 weeksA separate assessment of preterm birth risk, if not combined with your anatomy scan£100
Fetal heart scanEchocardiography · 20–22 weeksA separate specialist scan of your baby’s heart, recommended if there is an increased risk or a concern£350
Screening packagesPre-eclampsia · Preterm birthPlanned screening across pregnancy: pre-eclampsia from £400 (save £150) and preterm birth from £700 (save £200)See packages

Twin pregnancy: +£100 per scan. Insured and self-pay patients welcome. See all pregnancy scan prices →

More than a check of your baby’s anatomy

A healthy pregnancy needs a healthy baby, placenta and cord.

The 20-week scan is often thought of as a check of the baby’s anatomy alone. But many conditions that affect the outcome of a pregnancy involve the placenta, the umbilical cord or the cervix, and would be missed by an anatomical checklist.

That is why our anatomy scan also assesses the placenta’s position and function, the cord insertion and, if you choose, your cervical length.

The illustration shows a placenta covering the cervix (placenta praevia), a condition that a check of the baby alone would miss.

Illustration of a baby in the womb with a low-lying placenta covering the cervix (placenta praevia), assessed at the anatomy scan

Our anatomy scan assesses your baby, the placenta and the cord together, giving you meaningful reassurance about the health of your whole pregnancy.

Your anatomy scan appointment

One unhurried hour with your consultant.

1

Before your scan

No special preparation is needed. Please bring any previous scan reports and screening results.

2

During your scan

A detailed scan following Fetal Medicine Foundation (FMF) recommendations, explained as we go.

3

After your scan

A clear explanation of your scan findings, and a personalised plan for the rest of your pregnancy.

Every anatomy scan includes

  • A 1-hour appointment with a consultant
  • A detailed assessment of your baby’s heart
  • A printed and electronic report
  • Printed scan images and digital images sent to your phone
  • 3D and 4D images at no extra cost
  • A copy of your report for your GP or midwife, if you give us their email
Ultrasound image of a baby in profile at the 20-week anatomy scan

If something needs a closer look

Expert, unhurried support from a fetal medicine specialist.

Most scans are reassuring. If a finding needs further thought, your consultant will explain what it means, sensitively and clearly, and talk through the next steps with you.

  • Soft markers explained in the context of your scan, screening results and history
  • A specialist fetal heart scan (echocardiography), if needed
  • Coordination with your NHS fetal medicine team, where appropriate
  • A second opinion consultation + scan if you have concerns about a finding from a scan elsewhere
Fetal medicine consultant performing a detailed anatomy scan while a couple watch their baby on screen at The Pregnancy Clinic, Sevenoaks

Why families trust us

Consultant-led care, recommended by our patients.

Led by Professor Ranjit Akolekar, Consultant in Fetal Medicine and Obstetrics, with over 25 years’ experience in high-risk pregnancy and more than 250 published studies. Read more →

What our patients say

Ready to book your anatomy scan?

Health insurance and self-pay accepted · No GP referral needed

Anatomy scan: your questions answered

When is the anatomy scan done?

The detailed anatomy scan is performed between 20 and 22 weeks of pregnancy, when your baby’s organs can be assessed in detail. An early anatomy scan is also available at 16–18 weeks for earlier reassurance.

How long is the appointment, and what will I receive?

The appointment lasts 1 hour. You will receive a printed and electronic report, printed scan images and digital images sent to your phone, and 3D and 4D images at no extra cost, with a full explanation from your consultant.

Is the anatomy scan the same as the anomaly scan?

Yes. It is often called the anomaly scan or 20-week scan. We call it the anatomy scan because it is a detailed assessment of your baby’s development and of the whole pregnancy, including the placenta and cord, not just a search for problems.

Does the anatomy scan check my baby’s heart?

Yes. Every detailed anatomy scan includes a detailed assessment of your baby’s heart. A separate specialist fetal heart scan (echocardiography, £350) is recommended if there is an increased risk or a concern.

Should I add a cervical length scan?

A cervical length measurement assesses your risk of preterm birth. It can be added to your anatomy scan for £350 in total, saving £50, or booked separately for £100. It is particularly helpful if you have had a previous preterm birth, late miscarriage or cervical surgery.

What are soft markers?

Soft markers are subtle ultrasound findings that are usually normal variations rather than abnormalities. Most have no effect on the baby’s health. If one is seen, your consultant will explain it in the context of the rest of your scan, your screening results and your history.

Does a normal anatomy scan rule out all problems?

No scan can identify every condition. In expert hands, the anatomy scan identifies most major problems, but some organs continue to develop after 20 weeks, so a growth and well-being scan in the third trimester gives further reassurance.

What happens if a problem is found?

Your consultant will explain the finding clearly and sensitively, discuss what it may mean and agree the next steps with you. This may include a specialist heart scan, further tests or coordination with your NHS fetal medicine team.

Can you perform the anatomy scan for twins?

Yes. Each baby is assessed individually, and twin pregnancies are an additional £100 per scan.

What should I do if I have an urgent concern?

We provide planned appointments only. If you have pain, bleeding, contractions, leakage of fluid, reduced baby movements or any other urgent concern, please contact your local NHS maternity unit, NHS 111 or your GP, or attend A&E. In a life-threatening emergency, call 999.

More answers in our anatomy scan FAQs.

Have a question? Ask us

Send us a message and our team will reply during clinic hours. No booking or deposit needed.

    We provide planned appointments only. If you have pain, bleeding, contractions, leakage of fluid, reduced baby movements or any other urgent concern, please contact your local NHS maternity unit or Early Pregnancy Unit, NHS 111 or your GP, or attend A&E. In a life-threatening emergency, call 999.

    Prefer to speak to us?

    Our patient care team is happy to answer your questions and help you choose the right appointment.

    01732 647072Call us07572 929888Message us on WhatsAppcare@thepregnancyclinic.comEmail our care team

    Opening hoursTuesday 9am–8pm · Thursday 9am–5pm · Saturday 9am–7pm. Other days on request.

    Find usThe Highland Suite, Great Hollanden Business Centre, Mill Lane, Underriver, Sevenoaks, Kent TN15 0SQ
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    Map showing The Pregnancy Clinic at Great Hollanden Business Centre, between Sevenoaks and Hildenborough