Disequilibrium refers to an impaired sense or absence of balance or equilibrioception that primarily occurs during standing or walking and usually without any cephalic sensations like headache, nausea and vomiting. It is one among the causes of dizziness^[1] and it is typically a more complex category with more continuous symptoms than the other causes of dizziness like presyncope and vertigo.

Disequilibrium is the result of a dysfunction at one or more points in the complex system required for balance and ambulation that includes visual, motor, sensory, cerebellar and vestibular systems.