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Living with Fibrous dysplasia

A bone condition in which normal bone is replaced with fibrous tissue, sometimes causing pain, bone shape changes or fractures.

Understanding Fibrous dysplasia

Fibrous dysplasia is a skeletal disorder in which normal bone is replaced by fibrous bone tissue.

It can involve one bone or many bones, and can affect any bone. Common sites are the skull, face, arm and leg bones, pelvis, and ribs. Many people have no symptoms. Others have bone pain, bone shape changes, or a higher risk of fractures. It can occur alone or as part of a genetic disorder such as McCune-Albright syndrome.

Signs & symptoms

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

  • Bone pain
  • Bone shape changes (deformities)
  • Fractures from minor stress
  • Bowed long bones
  • Legs of different lengths and limping
  • Facial or skull bone 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 bone and joint specialists and genetic 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

    FD/MAS Alliance may keep lists of experts for this condition.

Care & treatment

Care team
Bone and joint specialists (orthopedists or orthopedic surgeons); Genetic specialists (geneticists)
Expert care
Expert lists: FD/MAS Alliance
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 FD/MAS Alliance 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
Is just one bone involved or several?
How often should imaging be done to monitor the bones?
Could this be part of a syndrome such as McCune-Albright?

Quick facts

Symptoms usually startfrom Childhood to Adulthood

Changes in genes cause it. GARD doesn't name a gene.

Genetic

Also known as: fibrous dysplasia of bone; fibrous dysplasia of the bones; jaffe-lichtenstein syndrome; osteitis fibrosa

Patient organizations

Source: NIH GARD · Fibrous dysplasiaGARD ID 6444 · 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 Fibrous dysplasia.

Explore the Fibrous dysplasia blog

Explore research for Fibrous dysplasia

Explore actively recruiting Fibrous dysplasia studies with HealthSpark.

HealthSpark

Find actively recruiting studies for Fibrous dysplasia 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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