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Living with Bathing suit ichthyosis

A rare genetic skin condition with large dark scales in certain areas of the body.

Understanding Bathing suit ichthyosis

Bathing suit ichthyosis is a rare form of inherited ichthyosis with large dark scales in specific areas of the body.

It is a variant of autosomal recessive congenital ichthyosis, a group of conditions that cause scaly skin from birth. Signs show up in newborns and infants. Features can include red, scaly, thickened skin, and eyelids or lips that turn outward.

Signs & symptoms

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

  • Scaling skin (ichthyosis)
  • Thickened skin
  • Red skin all over (erythroderma)
  • Eyelids that turn outward (ectropion)
  • Lips that turn outward (eclabion)
  • Trouble sensing temperature

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 eye disease specialists, genetic specialists and skin, hair, and nail specialists.

  3. Consider genetic testing

    Changes in TGM1 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

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

Care & treatment

Care team
Eye disease specialists (ophthalmologists); 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
Can TGM1 gene testing confirm the diagnosis in my child?
How should we care for scaly skin day to day?
Do the eyelids or lips need to be checked by a specialist?

Quick facts

Symptoms usually startNewborn and as an Infant
InheritanceAutosomal Recessive
GenesTGM1

Changes in the TGM1 gene cause this condition. It is autosomal recessive, which means a child inherits a changed copy of the gene from each parent.

GeneticSkin

Also known as: bsi

Patient organizations

Source: NIH GARD · Bathing suit ichthyosisGARD ID 16938 · 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 Bathing suit ichthyosis.

Explore the Bathing suit ichthyosis blog

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Explore actively recruiting Bathing suit ichthyosis studies with HealthSpark.

HealthSpark

Find actively recruiting studies for Bathing suit ichthyosis 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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