Balance Problems: Why You Feel Unsteady on Your Feet and What to Do About It

Balance is maintained by the integration of three sensory systems: the vestibular system (inner ear — detects head movement and gravity); the visual system (the eyes orient to the horizontal); and proprioception (sensory nerves in the feet, legs, and spine that tell the brain where the body is in space). The cerebellum and brainstem process and integrate these signals. Dysfunction at any level of this system — peripheral or central — causes imbalance, unsteadiness, or falls. Correctly identifying which level is affected determines treatment.

Common Causes by Category

Vestibular (inner ear): BPPV, vestibular neuritis, Menière's disease, bilateral vestibular failure (from aminoglycoside toxicity — streptomycin, gentamicin — or auto-immune damage). Bilateral vestibular failure causes oscillopsia (the world bounces with each step) and severe imbalance — particularly in the dark when visual compensation is unavailable.

Proprioceptive: Peripheral neuropathy (diabetic most commonly) — the feet cannot feel the ground properly; vitamin B12 deficiency neuropathy; cervical myelopathy (spinal cord compression at the neck impairs proprioceptive signals ascending to the brain). Patients describe "walking on cotton wool" or not feeling their feet.

Cerebellar: Cerebellar stroke, tumour, multiple sclerosis, or degenerative ataxia — causes a wide-based gait, incoordination, and inability to perform tandem walking (heel-to-toe in a straight line).

Multifactorial (elderly): The combination of mild impairment in all three systems plus medication effects (sedatives, antihypertensives causing postural hypotension) is the most common cause of falls in elderly people in India.

Vestibular Rehabilitation

A structured physiotherapy programme of balance exercises (gaze stabilisation, habituation exercises, balance training) is evidence-based for most causes of chronic imbalance — particularly after vestibular neuritis and for bilateral vestibular failure. Compensation and adaptation exercises train the brain to use remaining sensory information more effectively. Sri Anand CNC, Chanda Nagar, Hyderabad. Call +91 90633 66983.