The vestibular system — a part of the body that physical therapy can directly address
— is the sensory system located in the inner ear that detects head position and movement, contributing to balance, spatial orientation, and the ability to stabilize vision during motion.
What the vestibular system does and what happens when it's disrupted
The vestibular system sits inside each inner ear, made up of fluid-filled canals and chambers that detect rotational and linear head movement. Signals from these structures combine with input from the eyes and from sensory receptors in muscles and joints to give the brain a continuous, integrated sense of where the body is in space. When the vestibular system is working well, this process is seamless — you can move your head without the world spinning and stay upright on uneven ground without thinking about it.
When it's disrupted — by a head injury, a viral infection, dislodged crystals in the inner ear known as benign paroxysmal positional vertigo (BPPV), or a neurological event — the result can be vertigo, a spinning sensation, persistent unsteadiness, dizziness with head movement, or difficulty concentrating. These symptoms can significantly limit daily function and often improve substantially with vestibular rehabilitation, a specialized area of physical therapy.
Why vestibular symptoms are often undertreated
Many people experiencing dizziness or balance problems are told to wait it out, prescribed medication to suppress symptoms, or referred for imaging that doesn't identify a clear cause. Vestibular rehabilitation — a targeted program that recalibrates the brain's use of vestibular, visual, and proprioceptive signals — can help conditions like BPPV, vestibular hypofunction, and concussion-related balance problems, but access to it remains limited.
Why symptoms that settle don't always mean recovery is complete
Vestibular compensation — the brain adapting to a disrupted inner ear signal — can reduce acute symptoms while leaving residual instability, motion sensitivity, or fall risk that only becomes apparent in demanding situations. A physical therapist with vestibular training can assess whether compensation is complete and address any remaining deficits.
How Sword Health can help
A physical therapist with vestibular training can assess your balance system, identify what's disrupted, and guide you through a targeted rehabilitation program that addresses the source. Sword connects you with that specialist-level care from home, making it easier to take the first step toward feeling steady again.
About the author
Carolina Moreira
Medical Director of Clinical Development at Sword Health
