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Living with ADULT syndrome

A rare condition affecting the skin, hair, nails, teeth, and hands and feet, with fused or missing fingers and freckling.

Understanding ADULT syndrome

ADULT syndrome is a rare ectodermal dysplasia syndrome that affects the skin, hair, nails, teeth, and limbs.

Features include missing parts of the hands or feet (ectrodactyly), fused fingers or toes (syndactyly), small breasts, and a lot of freckling. People may also have fewer teeth, blocked tear ducts, thin hair, and nail differences. It is present from pregnancy or birth.

Signs & symptoms

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

  • Freckling
  • Fused fingers or toes (syndactyly)
  • Nail differences
  • Tooth differences
  • Blocked tear ducts
  • Thin or sparse scalp hair

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, eye disease specialists, genetic specialists and gum, teeth and mouth specialists.

  3. Consider genetic testing

    Changes in TP63 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

    National Foundation for Ectodermal Dysplasias may keep lists of experts for this condition.

Care & treatment

Care team
Bone and joint specialists (orthopedists or orthopedic surgeons); Eye disease specialists (ophthalmologists); Genetic specialists (geneticists); Gum, teeth and mouth specialists (odontologists)
Expert care
Expert lists: National Foundation for Ectodermal Dysplasias
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 National Foundation for Ectodermal Dysplasias 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
Is genetic testing for TP63 available for our family?
Which specialists, such as a dentist or hand surgeon, should we see?
How can dry skin and skin sores be cared for?

Quick facts

Symptoms usually startduring Pregnancy and as a Newborn
InheritanceAutosomal Dominant
GenesTP63

Changes in the TP63 gene cause this condition. It is autosomal dominant, so a changed copy of the gene from one parent can be enough.

GeneticSkin

Also known as: acro-dermato-ungual-lacrimal-tooth syndrome; acro-dermo-ungual-lacrimal-tooth syndrome (adult syndrome); acrodermatounguallacrimaltooth syndrome; adult (acro-dermato-ungual-lacrimal-tooth) syndrome; pigment anomaly-ectrodactyly-hypodontia syndrome

Patient organizations

Source: NIH GARD · ADULT syndromeGARD ID 384 · 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 ADULT syndrome.

Explore the ADULT syndrome blog

Explore research for ADULT syndrome

Explore actively recruiting ADULT syndrome studies with HealthSpark.

HealthSpark

Find actively recruiting studies for ADULT 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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