What happens to otoliths?

  Otoliths, the academic name for benign paroxysmal positional vertigo, are the most common inner ear disorder causing vertigo, and can occur in anyone, but are more common in the elderly.  Benign paroxysmal positional vertigo is, as the name suggests, benign: although the vertigo is intense and causes fear and pain, it is not life-threatening; paroxysmal: the onset is sudden and the vertigo is short-lived; positional: the attacks are triggered by specific head positions or movements, such as turning over, getting up, turning the head and lifting the head.  Most otoliths have no clear cause. Possible causes include trauma, migraine, other inner ear disorders, diabetes, osteoporosis, prolonged unilateral sleep, and prolonged bed rest due to surgery or illness.  Otoliths are calcium carbonate crystals normally found in the human inner ear and play an important role in maintaining our body’s motor balance. The otolith is normally located in the center of the inner ear. When the otolith is dislodged from its normal position, it floats in the semicircular canal of the inner ear or attaches to the wrong position of the balance receptors. When we change the position of our head or body and these dislodged otoliths move in the wrong direction with gravity, our brain receives the wrong signals induced by the dislodged otoliths and creates the illusion that our body or surrounding objects are spinning at a fast pace.  Diagnosis and treatment of otoliths depends mainly on the doctor’s manipulation, which is fast and effective, and most patients are suspicious surface taking medications or tests such as CT.