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The inner ear and canalith repositioning
Vertigo usually results from a problem with the nerves and structures of the balance mechanism in your inner ear (vestibular labyrinth). BPPV occurs when particles called otoconia break loose and fall into the wrong part of the canals of your inner ear, producing an episode of vertigo. The goal of the canalith repositioning procedure is to move the otoconia from your inner ear to the utricle.