Of 548 patients with complaints of vertigo due to ENT pathology, diseases of the cardiovascular and nervous systems, 101 (18,5±1,6%) had positional paroxysmal nystagmus (PPN). As a result of clinical and statistical studies, it was found that in the Genesis of PPN, the action of vascular factor is of predominant importance in comparison with the phenomena of foci of infection in the body. In patients suffering from positional labyrinth syndrome and PD, it is advisable to prescribe means that regulate vascular tone and improve blood supply to the inner ear.