Key Facts about Williams Syndrome
Williams syndrome is caused by the deletion of genetic material at chromosome 7.
Features such as wide mouth, a small upturned nose and a small chin are just some of the physical characteristics found in individuals with Williams syndrome.
Some health issues occur in individuals with Williams syndrome. These include gastrointestinal difficulties, increased risk of cardiovascular diseases and mild to moderate hearing loss.
Individuals with Williams syndrome usually have a mild intellectual disability.
Auditory short-term memory and facial recognition skills are some of the cognitive strengths found in those with Williams syndrome whilst the ability to use visual-motor skills and maintain focus are seen to be weaker.
83% of individuals with Williams syndrome experience emotional or behavioural problems.
ADHD is estimated to affect 64% of those with Williams syndrome.
6-15% of individuals with Williams syndrome show signs of aggressive behaviour, which is far less common than in those with other genetic disorders.
Age-related changes linked to behavioural and physical characterstics change as an individual with Williams syndrome progresses from childhood to adulthood. Age-related changes associated with cognitive characteristics generally remain stable.
Stereotypical behaviours such as body rocking are often reported in individuals with Williams syndrome.