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Living with Klippel-Feil syndrome

A bone condition present from birth in which two or more neck bones are joined, which may cause a short neck, low hairline, and limited neck movement.

Understanding Klippel-Feil syndrome

Klippel-Feil syndrome is a bone disorder in which two or more bones in the neck (cervical vertebrae) are fused from birth.

It has three classic features: a short neck, a low hairline at the back of the head, and limited neck movement. Fewer than half of people have all three, and some have no symptoms. Fused bones can cause headaches, muscle pain, and a tilted or turned head (torticollis). The neck can become unstable, which can raise the risk of spinal cord damage, and some people have narrowing of the spinal canal.

Signs & symptoms

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

  • Fused neck bones
  • Short neck
  • Low hairline at the back of the neck
  • Limited neck movement
  • Neck pain and headaches
  • Curved spine (scoliosis)

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, digestive system 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); Digestive system specialists (gastroenterologists); 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 Child Neurology 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
Which type of Klippel-Feil syndrome do I have?
Is my neck stable, and what activities should I be careful with?
Should my kidneys, heart, and hearing be checked?

Quick facts

Symptoms usually startduring Pregnancy, at Birth, and as an Infant
InheritanceAutosomal Dominant, Autosomal Recessive

GARD says changes in genes (also called variants) cause this condition. It lists autosomal dominant and autosomal recessive inheritance.

GeneticGastrointestinal

Also known as: cervical c2/c3 vertebral fusion; cervical fusion syndrome; cervical vertebral fusion; cervical vertebral fusion autosomal dominant; cervical vertebral fusion autosomal recessive; cervical vertebral fusion syndrome

Patient organizations

Source: NIH GARD · Klippel-Feil syndromeGARD ID 10280 · 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 Klippel-Feil syndrome.

Explore the Klippel-Feil syndrome blog

Explore research for Klippel-Feil syndrome

Explore actively recruiting Klippel-Feil syndrome studies with HealthSpark.

HealthSpark

Find actively recruiting studies for Klippel-Feil syndrome 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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