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Living with Cutaneous porphyria

A rare inherited blood condition (congenital erythropoietic porphyria) causing severe sun sensitivity, blisters, and scarring from infancy.

Understanding Cutaneous porphyria

Cutaneous porphyria (congenital erythropoietic porphyria, CEP) is the rarest type of porphyria, commonly seen in infancy, and causes severe skin sun sensitivity.

Sun sensitivity can lead to scarring, blistering, and extra hair on the face and the backs of the hands. Sun damage and infection can cause the loss of fingers and facial features. Other signs can include excess body hair, reddish teeth, anemia, and reddish urine. The cause is a problem making heme in red blood cells in bone marrow, which causes a buildup of porphyrins. Symptoms range from mild to severe.

Signs & symptoms

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

  • Severe sun sensitivity
  • Skin blistering and scarring
  • Fragile skin
  • Reddish teeth (erythrodontia)
  • Red-brown or purple urine
  • Skin color changes

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 blood and bone marrow specialists, genetic specialists, kidney specialists and skin, hair, and nail specialists.

  3. Consider genetic testing

    Changes in UROS 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 Porphyria Foundation and United Porphyrias Association may keep lists of experts for this condition.

Care & treatment

Care team
Blood and bone marrow specialists (hematologists); Genetic specialists (geneticists); Kidney specialists (nephrologists); Skin, hair, and nail specialists (dermatologists)
Expert care
Expert lists: American Porphyria Foundation, United Porphyrias Association
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 Porphyria Foundation 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
Would UROS gene testing help our family?
How can we protect skin from sunlight and from infection?
Which specialists, such as blood and skin doctors, should be involved?

Quick facts

Symptoms usually startany time in life
InheritanceAutosomal Recessive
GenesUROS

It is caused by changes in the UROS gene. It is autosomal recessive, meaning a child inherits a changed copy of the gene from each parent.

GeneticKidneySkinBloodInherited Metabolic

Also known as: cep; cep - congenital erythropoietic porphyria; congenital erythropoietic porphyria; congenital photosensitive porphyria; congenital porphyria; erythropoietic porphyria

Patient organizations

Source: NIH GARD · Cutaneous porphyriaGARD ID 4446 · 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 Cutaneous porphyria.

Explore the Cutaneous porphyria blog

Explore research for Cutaneous porphyria

Explore actively recruiting Cutaneous porphyria studies with HealthSpark.

HealthSpark

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

  • Recruiting studies from ClinicalTrials.gov
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  • 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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