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Living with High bone mass osteogenesis imperfecta

A rare genetic bone condition with fragile bones and fractures starting in childhood, even though bone density is high.

Understanding High bone mass osteogenesis imperfecta

High bone mass osteogenesis imperfecta is a rare genetic bone condition that makes bones more likely to break.

It causes many fractures in the spine and other bones, starting in childhood. Bone density is increased on imaging. People usually have normal or mildly short height. Teeth, hearing, and the whites of the eyes are commonly normal.

Signs & symptoms

GARD doesn't list specific symptoms for this condition yet. Its summary describes:

  • Fragile bones
  • Fractures in the spine
  • Fractures in other bones
  • Increased bone density on imaging
  • Normal or mildly short height

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

    Osteogenesis Imperfecta Foundation 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: Osteogenesis Imperfecta 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 Osteogenesis Imperfecta Foundation
  • 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
How can we lower the chance of fractures?
Which specialists should be on our care team?
Would genetic testing help our family?

Quick facts

Symptoms usually startChild
InheritanceAutosomal Dominant

Changes in genes (also called variants) cause this condition. It is autosomal dominant, meaning one changed copy of the gene can be enough to cause it.

Genetic

Also known as: high bone mass oi

Patient organizations

Source: NIH GARD · High bone mass osteogenesis imperfectaGARD ID 21366 · 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 High bone mass osteogenesis imperfecta.

Explore the High bone mass osteogenesis imperfecta blog

Explore research for High bone mass osteogenesis imperfecta

Explore actively recruiting High bone mass osteogenesis imperfecta studies with HealthSpark.

HealthSpark

Find actively recruiting studies for High bone mass osteogenesis imperfecta 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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