Posttraumatic vertigo can be classified into main forms: the benign pa
roxysmal positioning vertigo (BPPV) and vertigo due to a unilateral fu
nctional deficit. The BPPV actually is considered as a canalolithiasis
, it means a dislocation of otolithic particles into the semicircular
canals, which is often triggered by head traumatism. In other cases th
e lesion consists in a damage of vestibular hair cells or the vestibul
ar nerve. For canalolithiasis a repositioning or a liberatory procedur
e is recommended, for unilateral lesions a habituation program in orde
r to improve central compensation. In general the prognosis for posttr
aumatic vertigo is good.