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Living with Maternally-inherited spastic paraplegia

A rare inherited condition with slowly worsening leg stiffness and weakness that starts in adulthood.

Understanding Maternally-inherited spastic paraplegia

Maternally-inherited spastic paraplegia, also called MT-ATP6-related mitochondrial spastic paraplegia, is a rare condition causing slowly worsening leg stiffness.

It starts in adulthood. It mainly affects the lower limbs on both sides, with stiffness, weakness of the lower legs and feet, and leg pain. Nerve tests often show nerve damage (axonal neuropathy).

Signs & symptoms

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

  • Leg stiffness (spasticity)
  • Weakness in the lower legs and feet
  • Trouble walking
  • Leg pain
  • Brisk reflexes
  • 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. Consider genetic testing

    Changes in MT-ATP6 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
Should we have MT-ATP6 genetic testing for our family?
Which therapies can help with leg stiffness and walking?
Which specialists should follow nerve and muscle health?

Quick facts

Symptoms usually startAdult
GenesMT-ATP6

Changes in the MT-ATP6 gene cause this condition. This gene is in mitochondrial DNA, which is passed from mother to children.

GeneticNeurological

Also known as: maternally-inherited spg; mitochondrially encoded atp synthase membrane subunit 6-related mitochondrial spastic paraplegia; mt-atp6-related mitochondrial spastic paraplegia

Patient organizations

Broader rare-disease groups

Source: NIH GARD · Maternally-inherited spastic paraplegiaGARD ID 21433 · 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 Maternally-inherited spastic paraplegia.

Explore the Maternally-inherited spastic paraplegia blog

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Explore actively recruiting Maternally-inherited spastic paraplegia studies with HealthSpark.

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  • Recruiting studies from ClinicalTrials.gov
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  • Eligibility is confirmed by the study team

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