Special emphasis was placed on the epidemiology, diagnosis and prognosis of Ménière's disease. The correct spelling was based on the epitaph of Dr. Prosper Ménière. The diagnostic criteria of the Ménière's Disease Research Committee of Japan were tabulated. Results of the epidemiological survey in Japan were compared with the data from various other countries. For the purpose of early diagnosis, a tentative plan for the differential diagnosis according to the initial symptom was presented. A review of the course and prognosis of the disease was discussed.
