latest news
  • Mental health difficulties in Williams, Prader-Willi & fragile X syndromes


    A recent paper published in 2019 has described and...

  • Video Launch - Challenging Behaviour

    We have launched a new video on the factors that...

  • Mental health difficulties in children with learning disabilities

    Overview of the presentation

    This presentation was delivered by Chris...

  • Exciting New Research in Autism Launched Today

    A new research study...

Key Fact
Everyone with Prader-Willi syndrome is an individual

Behavioural Characteristics

When people have a diagnosis of Prader-Willi syndrome it means that they are more likely to engage in certain behaviours than people without this syndrome. This is known as a ‘behavioural phenotype.’ However, this does not mean that everyone with Prader-Willi syndrome will show this behaviour and it is extremely important to remember that everyone with Prader-Willi syndrome is an individual.


Understanding which behaviours are more likely to occur in Prader-Willi syndrome means that parents, carers and professionals are in a stronger position to support a person because they can learn about why this behaviour is happening and develop interventions that are specific to people with this syndrome.


The following sections describe a range of behaviours including;


Descriptions of each of these behaviours can be found in the corresponding subsection on this website or you can visit the Key Topics pages to get a general overview of each of these areas.

Download this page as a PDF