The exact cause of Ménière’s disease is not well understood, and most believe that it may be due to a combination of factors that lead to membranous vagal effusion. The disease occurs mostly in middle-aged and young adults between 30 and 50 years of age, and is rare in children. There is no significant difference in the incidence between men and women. Binaural disease accounts for 10% to 50% of cases. The main pathological change in this disease is fluid in the membranous vagus. Meniere’s disease is considered to be an idiopathic membranous vagus effusion. Regarding the mechanism of hydrops production, it is generally believed that it is related to the disturbance of phytonadic function. The cause of phytonadic dysfunction, which has not been clarified, may be related to factors such as overexertion, mental stress, metabolic reactions, adrenocortical dysfunction, hypothyroidism, and imbalance of electrolyte balance. DeSousa (2002) called the vestibular symptoms of Meniere’s syndrome as a result of membrane vagal effusion caused by these known causes. In conclusion, the exact cause of Ménière’s disease is not well understood, and most believe that it may be due to a combination of factors leading to membranous effusion.