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Williams syndrome

Williams syndrome is a rare disorder caused by missing genes. It can cause developmental and medical problems.

Mental and behavioral symptoms of someone with Williams syndrome might include:

Medical problems of someone with Williams syndrome might include:

  • Narrowing of the blood vessels leaving the heart, which can cause high blood pressure and heart failure
  • High calcium levels in the blood, which may cause seizures and rigid muscles
  • Limited movement of the joints
  • Dental problems

Adults with Williams syndrome also tend to have a long, gaunt face and short height.

There is neither a cure for Williams syndrome nor a standard course of treatment. Treatment is given for symptoms as needed. Most people with Williams syndrome need to live with a caregiver.

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Content last updated: September 22, 2009.

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