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Living with Axial osteosclerosis

A bone condition with abnormal hardening of bones in the spine, pelvis, and upper long bones, often found by chance.

Understanding Axial osteosclerosis

Axial osteosclerosis, also called osteomesopyknosis, is a bone disorder with abnormal hardening of bone, mostly in the spine, pelvis, and upper parts of long bones.

It is usually found by chance in people who have back pain. It can start anywhere from childhood to adulthood. Features can include scoliosis, a hunched back, and denser bones.

Signs & symptoms

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

  • Denser bone (osteosclerosis)
  • Hardened spine bones
  • Scoliosis
  • Hunched back (kyphosis)
  • Back pain (from summary)

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.

Care & treatment

Care team
Bone and joint specialists (orthopedists or orthopedic surgeons); Genetic specialists (geneticists)
Expert care
Ask about multidisciplinary care centers for rare conditions
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 rare disease patient organizations for support
  • 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
Would genetic testing help find the cause?
How should my spine be monitored?
What can help with back pain?

Quick facts

Symptoms usually startfrom Childhood to Adulthood
InheritanceAutosomal Dominant

It is inherited in an autosomal dominant way, so a change in one copy of a gene can cause it. The genetic cause has not yet been identified.

Genetic

Also known as: osteomesopycnosis; osteomesopyknosis

Patient organizations

Rare-disease groups that can help

Source: NIH GARD · Axial osteosclerosisGARD ID 391 · 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 Axial osteosclerosis.

Explore the Axial osteosclerosis blog

Explore research for Axial osteosclerosis

Explore actively recruiting Axial osteosclerosis studies with HealthSpark.

HealthSpark

Find actively recruiting studies for Axial osteosclerosis 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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I can help you find recruiting Axial osteosclerosis studies. Enter a ZIP code, address or city below and I'll look within 50 miles.

Powered by HealthSpark, our AI chat helper · Study information from ClinicalTrials.gov · Eligibility is confirmed by the study team.

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