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Living with Stiff skin syndrome

A rare genetic condition with hard, thick skin that can limit how joints move.

Understanding Stiff skin syndrome

Stiff skin syndrome (SSS) is a rare genetic condition that causes hard, thick skin, usually over the whole body.

The thick skin can limit joint movement and cause joints to get stuck in a bent position (flexion contractures). Other signs can include extra hair growth, loss of body fat, a curved spine, muscle weakness, slow growth, and short stature. Signs may begin from birth through childhood. Doctors diagnose it with an exam and genetic testing can confirm it.

Signs & symptoms

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

  • Hard, thick skin
  • Skin that lacks stretch
  • Limited joint movement
  • Patches of darker skin
  • Extra hair growth (hypertrichosis)
  • Curved spine and short stature (some people)

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. Consider genetic testing

    Changes in FBN1 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

    Scleroderma Research Foundation 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: Scleroderma Research Foundation
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 Scleroderma Research 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
What therapy can help keep my joints moving?
Should my eyes be checked for problems such as glaucoma?
Would FBN1 gene testing help our family?

Quick facts

Symptoms usually startfrom Birth to Childhood
InheritanceAutosomal Dominant
GenesFBN1

Changes in the FBN1 gene cause this condition. It is autosomal dominant, meaning one changed copy of the gene can cause it.

GeneticSkin

Also known as: ssks

Patient organizations

Source: NIH GARD · Stiff skin syndromeGARD ID 5025 · 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 Stiff skin syndrome.

Explore the Stiff skin syndrome blog

Explore research for Stiff skin syndrome

Explore actively recruiting Stiff skin syndrome studies with HealthSpark.

HealthSpark

Find actively recruiting studies for Stiff skin syndrome 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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