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Living with Hereditary spastic paraplegia 56

A rare type of hereditary spastic paraplegia with late walking, toe walking, and stiff legs, starting from birth to childhood.

Understanding Hereditary spastic paraplegia 56

Hereditary spastic paraplegia 56 is a rare form of hereditary spastic paraplegia that starts between birth and childhood.

Features include delayed walking, toe walking, an unsteady spastic walk, and brisk reflexes in the legs. Arm stiffness, dystonia (twisting muscle contractions), mild nerve damage, and intellectual disability have also been linked to it.

Signs & symptoms

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

  • Stiff legs (spasticity)
  • Spastic, unsteady walk
  • Toe walking
  • Brisk reflexes in the legs
  • Delayed development

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 CYP2U1 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 Genetic Cures for Kids 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 CYP2U1 gene confirm the diagnosis?
Which therapies help with toe walking and stiffness?
Should development and thinking skills be monitored?

Quick facts

Symptoms usually startfrom Birth to Childhood
InheritanceAutosomal Recessive
GenesCYP2U1

It is caused by changes in the CYP2U1 gene. It is autosomal recessive, so a child inherits a changed copy of the gene from each parent.

GeneticNeurological

Also known as: autosomal recessive spastic paraplegia 56; autosomal recessive spastic paraplegia type 56; cyp2u1 hereditary spastic paraplegia; hereditary spastic paraplegia caused by mutation in cyp2u1; hereditary spastic paraplegia type 56; spastic paraplegia 56

Patient organizations

Source: NIH GARD · Hereditary spastic paraplegia 56GARD ID 17480 · 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 56.

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