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Living with Hereditary spastic paraplegia 34

An X-linked, pure type of hereditary spastic paraplegia with slowly worsening leg stiffness, starting in late childhood to early adulthood.

Understanding Hereditary spastic paraplegia 34

Hereditary spastic paraplegia 34 is an X-linked, pure form of hereditary spastic paraplegia with slowly worsening leg stiffness.

It causes a spastic walk, brisk reflexes, and ankle clonus (rhythmic jerking of the ankle). Some older adults also have leg pain and reduced vibration sense in the legs. It begins from late childhood to early adulthood.

Signs & symptoms

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

  • Stiff legs (spasticity)
  • Brisk reflexes
  • Ankle clonus
  • Shuffling walk
  • Leg pain
  • Reduced vibration sense in the legs

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 brain and nervous system 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

    Spastic Paraplegia Foundation may keep lists of experts for this condition.

Care & treatment

Care team
Brain and nervous system specialists (neurologists); Genetic specialists (geneticists)
Expert care
Expert lists: Spastic Paraplegia Foundation
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 Spastic Paraplegia 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
Could genetic testing identify the gene?
Should female relatives be tested as carriers?
Which therapies help with leg stiffness and pain?

Quick facts

Symptoms usually startfrom Childhood to Adulthood
InheritanceX-Linked

GARD says changes in genes (also called variants) cause this condition. It is X-linked, meaning the gene is on the X chromosome.

GeneticNeurological

Also known as: hereditary spastic paraplegia type 34; spastic paraplegia 34, x-linked; spastic paraplegia 34, x-linked, x-linked recessive; spg34; x-linked spastic paraplegia 34; x-linked spastic paraplegia type 34

Patient organizations

Broader rare-disease groups

Source: NIH GARD · Hereditary spastic paraplegia 34GARD ID 17063 · 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 Hereditary spastic paraplegia 34.

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