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Living with Hereditary spastic paraplegia 30

A pure or complex type of hereditary spastic paraplegia, often starting in the first or second decade of life.

Understanding Hereditary spastic paraplegia 30

Hereditary spastic paraplegia 30 is a rare, pure or complex type of hereditary spastic paraplegia.

The pure form causes stiff legs, an unsteady spastic walk, and brisk reflexes, usually in the first or second decade of life. The complex form can add muscle wasting, eye movement changes, mild trouble with balance, and mild nerve damage. It can start in the teen years or adulthood.

Signs & symptoms

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

  • Stiff legs (spasticity)
  • Spastic, unsteady walk
  • Brisk reflexes in the legs
  • Muscle wasting in the hands and feet
  • Nerve damage affecting feeling and movement
  • Poor balance (ataxia)

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. Consider genetic testing

    Changes in KIF1A are linked to this condition. Genetic testing and counseling can help confirm a diagnosis and explain what it means for your family.

  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 for the KIF1A gene confirm the diagnosis?
Is my form pure or complex?
Which therapies help with stiffness and balance?

Quick facts

Symptoms usually startTeenager and as an Adult
InheritanceAutosomal Dominant, Autosomal Recessive
GenesKIF1A

It is caused by changes in the KIF1A gene. It can be autosomal dominant or autosomal recessive.

GeneticNeurological

Also known as: autosomal spastic paraplegia type 30; hereditary spastic paraplegia caused by mutation in kif1a; hereditary spastic paraplegia type 30; kif1a hereditary spastic paraplegia; spastic paraplegia 30; spastic paraplegia 30, autosomal dominant

Patient organizations

Broader rare-disease groups

Source: NIH GARD · Hereditary spastic paraplegia 30GARD ID 16942 · GARD page updated September 2026 · Plain-language summary by Know Rare; editorial review pending. General information, not medical advice.

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