Sensory ataxia is a spinal ataxia. It is caused by deep sensory deficits caused by damage to the posterior roots of the spinal cord. Vision can be compensated, so Romberg’s sign is positive and the heel-knee-shin test is unstable, along with impaired position and vibration perception of the lower extremities. It is seen in spinal cord lesions, peripheral neurotic mass, and Friedreich’s disorder. What causes sensory ataxia? Degenerative, secondary atrophy of nerve cells and posterior root fibers in the spine can cause this disease. The disease is autosomal recessive, and its onset begins in early childhood or adolescence and worsens with age. What is the best way to prevent sensory ataxia? There is no special treatment for ataxia, except for general supportive therapy, acupuncture treatment, physical therapy and functional exercise of the limbs, and also various B vitamins, cytarabine, oral lecithin, etc. Patients with advanced disease should pay attention to the prevention of various infections.