Sensory ataxia is a condition characterized by a lack of coordination and balance due to problems with sensory input, particularly from the proprioceptive and vestibular systems. It often results from damage to the dorsal columns of the spinal cord or peripheral nerves, which affects the brain's ability to process information about body position and movement. Individuals with sensory ataxia may experience unsteady gait, difficulty walking in the dark, and problems with fine motor skills. Common causes include diabetes, multiple sclerosis, and vitamin deficiencies, particularly vitamin B12. Treatment focuses on addressing the underlying cause and may include physical therapy to improve coordination.