Since the introduction of Antibiotics labyrinth operations have become very seldom. In those days before the Antibiotic Era the indication to function-destructing radical surgery was justified in cases of suppurative labyrinthitis. Only in cases of mild serous (irritative) labyrinthitis were conservative treatments with drugs successful. Nowadays, labyrinthoperations are not necessary in most cases. Endocranial complications and high mortality rates of the disease are no longer feared today. All the same, there are cases were the labyrinth operation is justified despite high dosis of Antibiotica. Spceial problems and indications for labyrinthectomy are discussed with own examples.