Guidance
Screening in pregnancy: 20-week screening scan
Information about the screening test that takes place between 18 weeks and 20 weeks 6 days of pregnancy, commonly known as the 20-week screening scan.
Applies to England
Documents
Details
This guide to the 20-week screening scan tells expectant parents:
- its purpose
- what the possible results mean
- what will happen if it cannot be completed
To request another format, you can phone 0300 311 22 33 or email england.contactus@nhs.net.
Updates to this page
Published 7 May 2019
Last updated 6 March 2026
show all updates
-
Removed reference to PDF. Added information on requesting other formats.
-
Updated NHS England contact information. Removed 'for print' file, the HTML version can be used to print.
-
Addition of plain A4 PDF version for printing, to provide for people unable to access this information online.
-
Minor changes to the wording of use of personal information section (at end of leaflet).
-
First published.