Dizziness and headache have been known to be associated in both adults and children, since early this century. Otoneurological examination of headache sufferers at the University of Modena Headache Centre revealed a high percentage of ENG alterations indicating a mainly bulbo-pontine vestibular disorder. The lesion, which is more significant on the side more affected, is modified during attacks and with time. The authors suggest that in these patients migraine and dizziness have a common pathogenesis in alterations of neuromediators and/or their receptors and that ENG may be useful in evaluating headache.