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Williams syndrome

Find out about what it means to live with Williams syndrome and how to find the right support for your family.

What is Williams syndrome?

Williams syndrome is a rare genetic condition.

It occurs randomly and affects 1 in 18,000 people in the UK. Williams syndrome is not passed on from parent to child.

Williams syndrome and learning disability

Williams syndrome affects everyone in different ways, but many people will have a learning disability . A child's development will be delayed if they have Williams syndrome, which means they may take longer to learn how to walk, talk, and develop other social skills. 

A man pushes his daughter on a rocking horse in a playground

How does Williams syndrome affect someone?

As well as a learning disability, people with Williams syndrome will often share distinctive facial characteristics including a wide mouth with a pronounced bottom lip, slightly high and rounded cheeks, and widely-spaced teeth.  

People with Williams syndrome can develop physical and mental health problems later in life, including anxiety and depression. 

People with Williams syndrome are very talkative and can be excessively friendly. 

Hear from Katie

"When I was born, doctors said "she will never walk", "she may never talk". I proved them wrong when I did!Even though at the start of my life things were very uncertain, the future now is incredible. Who would have thought I would have succeeded in everything that I set my heart on doing.

Two people in a park talking

Diagnosis

Diagnosing Williams syndrome can be tricky. Contact your GP if you have any concerns about your child.

Williams syndrome is caused by a tiny piece of information in a chromosome missing. A simple blood test can tell if a chromosome is different to normal, which can help towards getting a diagnosis. 

Early diagnosis can help you get the support you need, so make sure you contact a GP if you are worried. 

Spotting the signs

Everyone with Williams syndrome will be be different, but some of the early signs of Williams syndrome in children can include:

  • low birth weight and slow growth
  • excessive vomiting and difficulty feeding
  • constipation
  • trouble sleeping
  • hernias.

Living with Williams syndrome

With the right support, people with Williams syndrome can live a fulfilled life, in the way they choose. 

Physical therapy and speech and language therapy can also help people with Williams syndrome develop as they grow up.

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