Spinocerebellar
Refers to the cerebellum and, in some forms, other parts of the nervous system that may be affected.
UNDERSTANDING SCA
What is Spinocerebellar Ataxia?
Spinocerebellar Ataxia (SCA) is a group of inherited neurological disorders that primarily affect the cerebellum — the part of the brain responsible for balance, coordination and precise movement.
Symptoms can include difficulty with walking and balance, coordination of the hands and arms, speech, swallowing, vision and other neurological functions. Symptoms and progression can vary considerably depending on the type of SCA and the individual.
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Our Mission
To raise awareness, support those affected by SCA, promote education and advocacy, and help advance research toward better treatments and, ultimately, a cure.
MORE THAN A BALANCE DISORDER
A progressive disease that deserves to be understood
SCA affects the cerebellum — the area at the back and base of the brain that helps coordinate movement, balance, speech and eye movements. As certain brain cells are affected over time, tasks that once felt automatic can become increasingly difficult.
Symptoms, age of onset and rate of progression can vary greatly from one SCA type to another, and even between people in the same family.
THE BASICS
What does SCA mean?
Ataxia
Means a loss of smooth, coordinated muscle control. It may affect walking, hands, speech, swallowing, vision and balance.
Inherited
Many SCAs are passed through families. Genetic counselling and testing can help families understand a particular diagnosis and its implications.
NO TWO JOURNEYS ARE THE SAME
SCA is a family of conditions — not a single experience
More than 100 forms of SCA and related hereditary ataxias have been described. Some begin in childhood; others do not become apparent until adulthood. Some progress slowly over decades, while others can be much more aggressive.
This variation matters. A person with SCA6, for example, may have a different pattern and pace of illness than someone with another form of SCA. Broad statements about “ataxia” can miss the realities faced by an individual person or family.
KNOWING MATTERS
Why diagnosis matters
A diagnosis can be emotionally difficult, but it can also replace years of uncertainty with answers. A neurological assessment, family history, imaging and genetic testing may all be part of understanding a person's condition.
Knowing the specific form of SCA can help guide medical care, connect families with the right research and support, and help relatives make informed decisions.
No family should have to face a progressive neurological disease without answers.
Awareness creates connection. Research creates possibility. Support helps people and families carry the weight of the journey together.
Learn more from trusted sources
This page is intended for education and awareness, not medical advice. For personal medical guidance, speak with a qualified healthcare professional or genetic counsellor.
National Institute of Neurological Disorders and Stroke ↗
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