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Living with Isolated asymptomatic elevation of creatine phosphokinase

A condition in which a muscle enzyme called CK stays high in the blood without any signs of muscle disease.

Understanding Isolated asymptomatic elevation of creatine phosphokinase

Isolated asymptomatic elevation of creatine phosphokinase is a condition with a persistently high blood level of the muscle enzyme CK and no symptoms.

CK (creatine phosphokinase) stays high in the blood, but tests show no sign of nerve or muscle disease. It is usually found by chance, after other causes of high CK are ruled out. It can be found at any time in life.

Signs & symptoms

GARD doesn't list specific symptoms for this condition yet.

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 genetic specialists.

  3. Consider genetic testing

    Changes in CAV3 are linked to this condition. Genetic testing and counseling can help confirm a diagnosis and explain what it means for your family.

Care & treatment

Care team
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
What other causes of high CK have been ruled out for me?
Would testing the CAV3 gene be helpful for me or my family?
How often should my CK level be rechecked?

Quick facts

Symptoms usually startany time in life
InheritanceAutosomal Dominant
GenesCAV3

Changes in the CAV3 gene are listed. It is passed down in an autosomal dominant way, meaning one changed copy of the gene is enough.

Genetic

Also known as: hyperckmia; idiopathic asymptomatic hyperckemia; isolated asymptomatic hyperckemia; isolated hyperckemia

Patient organizations

Rare-disease groups that can help

Source: NIH GARD · Isolated asymptomatic elevation of creatine phosphokinaseGARD ID 20356 · GARD page updated September 2026 · Plain-language summary by Know Rare; editorial review pending. General information, not medical advice.

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