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Living with Osteogenesis imperfecta

A group of genetic conditions that make bones weak and easy to break, ranging from mild to severe.

Understanding Osteogenesis imperfecta

Osteogenesis imperfecta (OI) is a group of genetic disorders that mainly affect the bones, causing them to break easily.

Bones may break from mild injury or with no clear cause. Some people have only a few fractures in their lives, while in severe cases fractures can occur even before birth. There are at least 19 recognized forms. Type I is the mildest, and milder forms often bring blue or gray tints to the whites of the eyes and hearing loss in adulthood. GARD lists onset as any time in life.

Signs & symptoms

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

  • Bones that break easily
  • Bone pain
  • Abnormal shape of long bones
  • Tooth differences
  • Curved or flattened spine bones
  • Bad bite (dental malocclusion)

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, Children's Brittle Bone Foundation and Little People of America 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, Children's Brittle Bone Foundation, Little People of America
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 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
Which type of OI do I or my child have?
What can help protect bones and lower fracture risk?
Which genetic testing would help my family?

Quick facts

Symptoms usually startany time in life
InheritanceAutosomal Dominant, Autosomal Recessive, X-Linked

GARD says changes in genes cause this condition. It can be inherited in autosomal dominant, autosomal recessive, or X-linked ways, depending on the form.

Genetic

Also known as: brittle bone disease; brittle bone syndrome; col1a1/2-related osteogenesis imperfecta; fragilitas ossium; glass bone disease; lobstein disease

Patient organizations

Source: NIH GARD · Osteogenesis imperfectaGARD ID 1017 · GARD page updated September 2026 · Plain-language summary by Know Rare; editorial review pending. General information, not medical advice.

Explore research for Osteogenesis imperfecta

Explore actively recruiting Osteogenesis imperfecta studies with HealthSpark.

HealthSpark

Find actively recruiting studies for 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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