What Are the Common Symptoms of Fragile X?

Features usually include:

> intellectual disabilities, ranging from mild learning disabilities to mental retardation
> attention deficit and hyperactivity, particularly in young children
> anxiety and unstable mood
> autistic behaviors
> sensory integration problems, such as hypersensitivity to loud noises or bright lights
> speech delay, with expressive language more severely affected than receptive language.
> seizures (epilepsy) affect about 25% of people with Fragile X


 Physical features are usually hard to recognize in babies and young children, but sometimes become more apparent with age.

> long face, large ears, flat feet
> hyperextensible joints, especially fingers
> low muscle tone
> men may have large testes
Boys are typically more severely affected than girls.

While most boys have mental retardation, only one-third to one-half of girls have significant intellectual impairment; the rest have either normal IQ or learning disabilities. Math is often a particular challenge for girls. Emotional and behavioral problems are common in both sexes.

About 30% of boys with fragile X meet full criteria for autism. Most boys and some girls have some symptoms of autism, but many tend to be very social and interested in other people.
The Cause of Fragile X