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Living with Autosomal recessive congenital ichthyosis 1

An inherited skin condition that causes scaling over the whole body, caused by changes in the TGM1 gene.

Understanding Autosomal recessive congenital ichthyosis 1

Autosomal recessive congenital ichthyosis 1 is a type of skin disorder that causes abnormal scaling of the skin all over the body.

There are two main types. Lamellar ichthyosis causes larger, dark scales without redness. Nonbullous congenital ichthyosiform erythroderma causes redness and fine white scales. Both can cause nail problems. Scales can cover the whole body, including skin folds, and some people have scarring hair loss and trouble sweating.

Signs & symptoms

GARD doesn't list a symptom list for this condition. The summary describes these features:

  • Scaly skin all over the body
  • Skin redness (in one type)
  • Larger, dark scales (in the other type)
  • Nail problems
  • Scarring hair loss
  • Trouble sweating

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.

  4. Connect with expert centers

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

Care & treatment

Care team
A doctor familiar with rare conditions, plus specialists as needed
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
  • 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
Can genetic testing for the TGM1 gene confirm the diagnosis?
Which type of ARCI do I or my child have?
How can we manage trouble with sweating and heat?

Quick facts

It is caused by changes in the TGM1 gene. It is autosomal recessive, so a child inherits a changed copy of the gene from each parent.

Also known as: arci1; autosomal recessive congenital ichthyosis type 1; collodion fetus; desquamation of newborn; ichthyosis congenita; ichthyosis congenita ii

Patient organizations

Source: NIH GARD · Autosomal recessive congenital ichthyosis 1GARD ID 3170 · GARD page updated September 2026 · Plain-language summary by Know Rare; editorial review pending. General information, not medical advice.

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