Fragile X Syndrome

Fragile X Syndrome (FXS) is a genetic condition that causes intellectual disability, behaviour and learning challenges and various physical characteristics. It is more common in males than females, and it is estimated that 5% of people diagnosed with an Autism Spectrum disorder also have Fragile X.

Not every person with FXS is affected in the same way, and males are generally more affected than females. Some of the common characteristics are:

Behavioural & Emotional features

  • Anxiety & shyness
  • Attention Deficit Hyperactivity Disorder
  • Autistic like behaviours
  • Aggression
  • Repetitive speech
  • Difficulty with eye contact
  • Tactile defensiveness

Developmental features

  • Learning difficulties
  • Developmental delay
  • Intellectual disability
  • Speech and communication problems
  • Coordination difficulties
  • Difficulties with fine and gross motor skills

Physical features

  • Low muscle tone and loose joints
  • Long, narrow face
  • High palate
  • Heart murmur

Source: Fragile X Syndrome Association of Australia website

Refer to 3.5 Intellectual Disabilities for programming and inclusion tips.

Further information

Fragile X Syndrome Association of Australia –

Please also refer to Autism Spectrum Disorders, and Down Syndrome for further examples of conditions leading to intellectual disability.