What are the most common behaviors for those with Fragile X syndrome (FXS)?

Fragile X syndrome can cause a variety of behaviors. People with Fragile X syndrome have many strengths; many of them have great memory, love to help others, and have a great sense of humor!

In Males

Behavioral characteristics can include:

  • Autism spectrum disorder and autistic behaviors
  • Social anxiety
  • Hand-biting and/or flapping
  • Poor eye contact
  • Sensory disorders
  • Increased risk for aggression

In Females

Behavioral characteristics seen in males can also be seen in females, though females often have milder intellectual disability and a milder presentation of the syndrome’s behavioral and physical features.

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