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Living with Hydroa vacciniforme, familial

A rare skin condition in which sun exposure leads to blisters, crusting, and scars.

Understanding Hydroa vacciniforme, familial

Hydroa vacciniforme, familial is a rare photodermatosis, a skin condition triggered by sunlight.

After sun exposure, people develop sudden blisters (vesiculation), crusting, and scarring.

Signs & symptoms

Symptoms vary from person to person. GARD's summary describes these:

  • Sudden blisters after sun exposure
  • Crusting of the skin
  • Scarring

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

    Your doctor may refer you to a specialist who knows rare conditions.

  3. Ask which tests can help

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

Care & treatment

Care team
A doctor familiar with rare conditions, plus specialists as needed
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
How can we protect skin from sun and prevent scarring?
Does it run in our family?
Should we see a dermatologist who knows this condition?

Quick facts

GARD doesn't describe a cause for this condition yet.

Also known as: hereditary hydroa vacciniforme

Patient organizations

Rare-disease groups that can help

Source: NIH GARD · Hydroa vacciniforme, familialGARD ID 10079 · 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 Hydroa vacciniforme, familial.

Explore the Hydroa vacciniforme, familial blog

Explore research for Hydroa vacciniforme, familial

Explore actively recruiting Hydroa vacciniforme, familial studies with HealthSpark.

HealthSpark

Find actively recruiting studies for Hydroa vacciniforme, familial 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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