Promotional material

CVS and amniocentesis diagnostic tests: description in brief

This information leaflet is for pregnant women who are offered a chorionic villus sampling (CVS) or amniocentesis diagnostic test.


CVS and amniocentesis: information for parents

This file may not be suitable for users of assistive technology. Request an accessible format.

If you use assistive technology (such as a screen reader) and need a version of this document in a more accessible format, please email Please tell us what format you need. It will help us if you say what assistive technology you use.


CVS and amniocentesis are diagnostic tests that can tell for definite if a baby has a serious condition by checking their chromosomes.

This A5 leaflet is for pregnant women who are offered a CVS or amniocentesis test following fetal anomaly screening.

Local screening providers can order free supplies of this leaflet.

You can download and print out this leaflet in booklet form if your computer has that option.

Published 23 January 2017
Last updated 11 April 2018 + show all updates
  1. Updated personal data statement and copyright information in leaflet.
  2. First published.