Promotional material

HCU suspected: description in brief

This leaflet explains to parents what the suspected homocystinuria (HCU) screening result means, and next steps in diagnosis.


Results of the newborn blood spot screening: homocystinuria (HCU) is suspected

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.


Information on what homocystinuria (HCU) is, how it is treated and diagnostic tests.

Healthcare professionals should download and print out this leaflet for parents of babies who have an HCU suspected result following their newborn blood spot screening test.

You can print this document in booklet form if your computer has that option.

Published 1 August 2013
Last updated 4 April 2016 + show all updates
  1. One of a suite of revised and updated inherited metabolic disease leaflets.
  2. First published.