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Living with Osteogenesis imperfecta, perinatal lethal

The most severe type of osteogenesis imperfecta, with many broken ribs and long bones at birth.

Understanding Osteogenesis imperfecta, perinatal lethal

Osteogenesis imperfecta, perinatal lethal is a very severe type of osteogenesis imperfecta (OI) with fragile bones and fractures present at birth.

Babies have multiple rib and long bone fractures at birth, marked bone deformities, broad long bones, a low-density skull on X-ray, and dark whites of the eyes. GARD lists onset as during pregnancy and as a newborn.

Signs & symptoms

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

  • Multiple fractures present at birth
  • Multiple rib fractures
  • Small chest (thoracic hypoplasia)
  • Crumpled or bowed long bones
  • Skull bones not hardened (absent ossification of calvaria)
  • Short limbs

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, eye disease 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); Eye disease specialists (ophthalmologists); 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
What does the care plan look like for my baby?
Which genetic testing would help us understand inheritance?
Which specialists should be on our care team?

Quick facts

Symptoms usually startduring Pregnancy and as a Newborn
InheritanceAutosomal Dominant, Autosomal Recessive

GARD says changes in genes cause this condition. It can be inherited in an autosomal dominant way, where one changed copy can be enough, or an autosomal recessive way, where a child inherits a changed copy from each parent.

Genetic

Also known as: lethal osteogenesis imperfecta; neonatal lethal osteogenesis imperfecta congenita; oi type 2; oi, type ii; oi2; osteogenesis imperfecta congenita

Patient organizations

Source: NIH GARD · Osteogenesis imperfecta, perinatal lethalGARD ID 10142 · GARD page updated September 2026 · Plain-language summary by Know Rare; editorial review pending. General information, not medical advice.

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