**3. Classification of ataxia**

Based on the location, there are different forms of ataxia: cerebellar, sensory, and vestibular ataxia. It can be further divided into three categories: acquired (caused by structural or demyelinating conditions, toxicity, paraneoplastic, inflammatory or infectious diseases, and autoimmune conditions), hereditary (caused by a gene defect and manifesting in childhood), and sporadic (patients have no family history of ataxia and present in adulthood) [23]. The most prevalent of the genetic types of ataxias is Friedreich's ataxia (FRDA), which is autosomal recessive.
