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Living with Erythrokeratoderma en cocardes

A rare inherited skin condition with target-like, scaly red patches that come and go, starting in childhood.

Understanding Erythrokeratoderma en cocardes

Erythrokeratoderma en cocardes is a rare genetic skin condition with ring-shaped, target-like scaly patches that come and go.

The patches have rings of scaly redness and appear on the arms, legs, skin folds, and trunk. Scaly patches may also appear in other areas. It usually starts in childhood.

Signs & symptoms

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

  • Target-like patches with scaly red rings
  • Thickened skin (hyperkeratosis)
  • Small raised bumps (papules)
  • Changes in skin color
  • Skin growths

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 genetic specialists and skin, hair, and nail specialists.

  3. Ask which tests can help

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

  4. Connect with expert centers

    Foundation for Ichthyosis and Related Skin Types may keep lists of experts for this condition.

Care & treatment

Care team
Genetic specialists (geneticists); Skin, hair, and nail specialists (dermatologists)
Expert care
Expert lists: Foundation for Ichthyosis and Related Skin Types
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 Foundation for Ichthyosis and Related Skin Types 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
Which treatments can help the scaly patches?
Can genetic testing confirm this diagnosis?
Could my children inherit this condition?

Quick facts

Symptoms usually startChild
InheritanceAutosomal Dominant

Changes in genes cause this condition. It is autosomal dominant, which means a change in one copy of the gene can cause it. GARD does not name the gene.

GeneticSkin

Also known as: degos genodermatosis; degos genodermatosis "en cocardes"; erythrokeratoderma ''en cocardes''; erythrokeratoderma en cocarde (degos); erythrokeratoderma en cocardes (degos syndrome); maladie de degos

Patient organizations

Source: NIH GARD · Erythrokeratoderma en cocardesGARD ID 1722 · 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 Erythrokeratoderma en cocardes.

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