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What is the life expectancy of a child with leukodystrophy?

Author

Emily Baldwin

Updated on March 04, 2026

What is the life expectancy of a child with leukodystrophy?

Children diagnosed with late infantile MLD typically live another five to 10 years. In juvenile MLD, the life expectancy is 10 to 20 years after diagnosis. If the symptoms don’t appear until adulthood, people typically live 20 to 30 years after the diagnosis.

What does leukodystrophy do to the brain?

Leukodystrophies are characterized by this abnormal growth of white matter in the brain. Specifically, these diseases damage the brain’s myelin sheath, which acts as an insulator around nerve fibers in the brain and spinal cord.

Is metachromatic leukodystrophy fatal?

Leukodystrophies are progressive, so the neurological problems get worse over time. They’re usually fatal. Many children with leukodystrophy die before their teenage years. Some people survive into adulthood.

What causes metachromatic leukodystrophy?

The most common cause of metachromatic leukodystrophy is a mutation in the ARSA gene. This mutation results in a lack of the enzyme that breaks down lipids called sulfatides that build up in the myelin.

Can leukodystrophy be cured?

There is no cure for most kinds of leukodystrophy. Treating it depends on the type, and doctors address the symptoms of the disease with medications and special kinds of physical, occupational, and speech therapy. Some people may need additional help with learning or nutrition.

Is there any cure for metachromatic leukodystrophy?

Metachromatic leukodystrophy can’t be cured yet, but clinical trials hold some promise for future treatment. Current treatment is aimed at preventing nerve damage, slowing progression of the disorder, preventing complications and providing supportive care.

Is there a cure for MLD?

There is currently no cure for MLD, a disease caused by a fault in the gene that produces an enzyme called arylsulfatase A (ARSA). This leads to a build-up of substances called sulfatides in the central and peripheral nervous system.

Does leukodystrophy run in families?

Most of the leukodystrophies are inherited, which means they’re passed down through family genes. Some may not be inherited, but are still caused by a genetic mutation. One child in your family could have leukodystrophy, and others might not.

Is leukodystrophy a disability?

Because this condition is one of the 88 disabilities that qualify a Social Security Disability claim for processing under the Compassionate Allowances guidelines.

How do you treat MLD?

There is no cure for MLD. Care focuses on treating the symptoms and preserving the person’s quality of life with physical and occupational therapy. Bone marrow transplant may be considered for infantile MLD. Research is studying ways to replace the missing enzyme (arylsulfatase A).

Who treats metachromatic leukodystrophy?

At Mayo Clinic, a team of doctors trained in nervous system conditions (neurologists), genetic disorders (medical geneticists) and other specialties work together as a team to care for people with metachromatic leukodystrophy.