Skip to content
knowrare
HealthSignal
Your condition community

Living with Acrocephalosyndactyly type I

A condition, also called Apert syndrome, with early-closing skull bones and webbed fingers and toes.

Understanding Acrocephalosyndactyly type I

Acrocephalosyndactyly type I, also called Apert syndrome, is marked by early fusing of the skull bones and webbing of the fingers and toes.

Distinct facial features can lead to dental and vision problems. People may also have mild to moderate intellectual disability. Many cases result from a new genetic change in a person with no family history. GARD lists onset as during pregnancy and as a newborn.

Signs & symptoms

Symptoms vary from person to person. GARD lists these among the most common:

  • Early fusing of skull bones (craniosynostosis)
  • Webbed or fused fingers and toes
  • Bulging eyes
  • Small upper jaw and bite problems
  • Conductive hearing loss
  • Crossed eyes (strabismus)

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, ear, nose, and throat specialists and eye disease specialists.

  3. Consider genetic testing

    Changes in FGFR2 are linked to this condition. Genetic testing and counseling can help confirm a diagnosis and explain what it means for your family.

  4. Connect with expert centers

    American Cleft Palate Craniofacial 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); Ear, nose, and throat specialists (otolaryngologists); Eye disease specialists (ophthalmologists)
Expert care
Expert lists: American Cleft Palate Craniofacial 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 American Cleft Palate Craniofacial 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
When should skull and hand surgeries be considered?
How often should hearing, vision, and dental care be checked?
What does FGFR2 genetic testing mean for our family?

Quick facts

Symptoms usually startduring Pregnancy and as a Newborn
InheritanceAutosomal Dominant
GenesFGFR2

Changes in the FGFR2 gene cause this condition. It is autosomal dominant, but many cases result from a new genetic change with no family history.

GeneticNeurological

Also known as: acrocephalo-syndactyly type 1; acrocephalosyndactyly (apert); acrocephalosyndactyly type 1; acs 1; acs1; apert syndrome

Patient organizations

Source: NIH GARD · Acrocephalosyndactyly type IGARD ID 5833 · 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 Acrocephalosyndactyly type I.

Explore the Acrocephalosyndactyly type I blog

Explore research for Acrocephalosyndactyly type I

Explore actively recruiting Acrocephalosyndactyly type I studies with HealthSpark.

HealthSpark

Find actively recruiting studies for Acrocephalosyndactyly type I 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

Powered by HealthSpark, our AI chat helper

I can help you find recruiting Acrocephalosyndactyly type I studies. Enter a ZIP code, address or city below and I'll look within 50 miles.

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

Get Signals for Acrocephalosyndactyly type I

Stay in the loop with community stories and updates from medical researchers.

HealthStoryfor Acrocephalosyndactyly type I

Create a living journal that talks back

HealthStory evolves private journaling with a living AI journal that talks back and asks thoughtful questions, helping you capture your Acrocephalosyndactyly type I experiences more deeply and prepare for better conversations with your doctors and care team.

Start your journal

Your journal is private. Sharing your story publicly is a separate choice, made with Share your story above.