Causes of early onset ataxias
| Friedreich's ataxia |
| Ataxia with oculomotor apraxia types 1 and 2 |
| Ataxia telangiectasia |
| Hexosaminidase A deficiency (Tay–Sachs or Sandhoff disease) |
| Adrenoleukodystrophy (X-linked) |
| Cholestanolosis (cerebrotendinous xanthomatosis) |
| Unverricht–Lundborg disease |
| Lafora body disease |
| Niemann–Pick disease type C |
| Metachromatic leukodystrophy |
| Abetalipoproteinaemia (Bassen–Kornzweig disease) |
| Xeroderma pigmentosum, Cockayne syndrome |
| Episodic ataxias (autosomal dominant) |
| Neuronal ceroid lipofuscinoses (Batten's disease, Kuf's disease—autosomal dominant or recessive) |
| POLG (polymerase γ) mutations |
| Ataxia with isolated vitamin E deficiency |
| Charlevoix–Saguenay spastic ataxia |