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Living with Eyebrow duplication-syndactyly syndrome

A very rare inherited condition with partly doubled eyebrows and joined fingers and toes.

Understanding Eyebrow duplication-syndactyly syndrome

Eyebrow duplication-syndactyly syndrome is a very rare condition with partly doubled eyebrows and joined fingers and toes (syndactyly).

It was described in three people: a brother and sister and one unrelated person. Other features reported in some people include stretchy skin, extra hair growth, long eyelashes, and wrinkling around the eyes. It is seen in newborns and infants.

Signs & symptoms

GARD describes these features in its summary:

  • Partly doubled eyebrows
  • Joined fingers and toes (syndactyly)
  • Stretchy skin (in some)
  • Extra hair growth (in some)
  • Long eyelashes (in some)

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 and genetic specialists.

  3. Ask which tests can help

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

Care & treatment

Care team
Bone and joint specialists (orthopedists or orthopedic surgeons); Genetic specialists (geneticists)
Expert care
Ask about multidisciplinary care centers for rare conditions
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 rare disease patient organizations for support
  • 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
Would surgery help the joined fingers or toes?
Can genetic testing help confirm this diagnosis?
Could other children in the family be affected?

Quick facts

Symptoms usually startNewborn and as an Infant
InheritanceAutosomal Recessive

Changes in genes cause this condition. It is autosomal recessive, which means a child inherits a changed copy of the gene from each parent. GARD does not name the gene.

Genetic

Patient organizations

Rare-disease groups that can help

Source: NIH GARD · Eyebrow duplication-syndactyly syndromeGARD ID 2216 · 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 Eyebrow duplication-syndactyly syndrome.

Explore the Eyebrow duplication-syndactyly syndrome blog

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