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Living with Williams syndrome

A developmental condition affecting learning, personality, facial features, and the heart and blood vessels.

Understanding Williams syndrome

Williams syndrome is a developmental disorder that affects many parts of the body.

It includes mild to moderate intellectual disability or learning problems, distinctive facial features, and heart and blood vessel problems. People often find visual-spatial tasks hard, such as puzzles, but tend to do well with spoken language, music, and learning by repetition. They often have outgoing, engaging personalities. Attention problems, anxiety, and phobias are common.

Signs & symptoms

Symptoms vary from person to person. GARD describes these:

  • Mild to moderate learning difficulty
  • Narrowing of the main body artery (supravalvular aortic stenosis)
  • Distinctive facial features
  • Trouble with puzzles and drawing
  • Anxiety and attention problems
  • Dental differences

Not everyone has every symptom. GARD's list comes from the Human Phenotype Ontology.

Diagnosis

  1. Talk with your doctor

    Share the symptoms you've noticed, when they started and your family health history. Notes and photos can help.

  2. See a specialist

    Specialists who may be involved include bone and joint specialists, brain and nervous system specialists, eye disease specialists and genetic specialists.

  3. Ask which tests can help

    Your care team will decide which exams and tests can confirm the diagnosis.

  4. Connect with expert centers

    Williams Syndrome Association and World Craniofacial Foundation may keep lists of experts for this condition.

Care & treatment

Care team
Bone and joint specialists (orthopedists or orthopedic surgeons); Brain and nervous system specialists (neurologists); Eye disease specialists (ophthalmologists); Genetic specialists (geneticists)
Expert care
Expert lists: Williams Syndrome Association, World Craniofacial Foundation
Treatment
GARD doesn't list specific treatments for this condition. Your care team will tailor care to your symptoms.
Research
Clinical trials and observational studies may be options. See the research section below.

General information, not medical advice. Your care team makes the decisions.

Everyday life

Living with a rare condition is easier with support.

  • Connect with Williams Syndrome Association and other patient organizations
  • Keep notes on symptoms, changes and questions for appointments
  • Ask about patient registries that help research
  • Look into financial aid and travel resources for care visits
Bring these questions to your next doctor visit
What heart and blood vessel checks does my child need?
Which therapies can help with learning and anxiety?
Could genetic testing confirm the diagnosis?

Quick facts

Symptoms usually startduring Pregnancy and as a Newborn
InheritanceAutosomal Dominant

GARD says it is inherited in an autosomal dominant way. It says changes in genes (variants) cause it, and doesn't name a gene here.

GeneticNeurologicalKidney

Also known as: chromosome 7q11.23 deletion syndrome, 1.5- to 1.8-mb; deletion 7q11.23; fanconi schlesinger syndrome; monosomy 7q11.23; wbs; william syndrome

Patient organizations

Source: NIH GARD · Williams syndromeGARD ID 7891 · GARD page updated September 2026 · Plain-language summary by Know Rare; editorial review pending. General information, not medical advice.

You are more than your diagnosis

Perspectives from people navigating life with Williams syndrome.

Explore the Williams syndrome blog

Explore research for Williams syndrome

Explore actively recruiting Williams syndrome studies with HealthSpark.

HealthSpark

Find actively recruiting studies for Williams syndrome with HealthSpark. Share your city to explore research near you.

  • Recruiting studies from ClinicalTrials.gov
  • Share your city to look for research near you
  • Eligibility is confirmed by the study team

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Powered by HealthSpark, our AI chat helper · Study information from ClinicalTrials.gov · Eligibility is confirmed by the study team.

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