Fragile X syndrome is a genetic disorder.  It is caused by a change in the DNA structure (the X chromosome).  A person diagnosed with fragile x syndrome have a wide range of developmental, physical and behavioral problems, and is the most common known cause of inherited intellectual disability. 

More information about fragile x syndrome can be found by clicking on the links provided below.

Fragile x syndrome explained

• what is fragile x syndrome
• fragile x in detail
• fragile x
• fragile x syndrome
• fragile x syndrome
• fact sheet - fragile x syndrome

Testing and treatment

• guidelines for testing for fragile x syndrome
• possible treatment for fragile x syndrome
• genetic test for fragile x syndrome

News and research

• the health report - fragile x syndrome
• fragile x syndrome research