The Middle Ear

The most common disorders of the middle ear are infections and damage to the eardrum. Infections are commonly caused by bacteria or viruses, which enter the middle ear either through a perforated eardrum or along the eustachian, or auditory, tube from the back of the nasal cavity, The delicate bones that conduct sound to the…

Cholesteatoma – Definition, Causes, Symptoms and Cure In cholesteatoma the eustachian tube, which leads from the middle ear cavity to the nose and throat, either failed to open properly in infancy or has become blocked due to repeated middle ear infections. As a result, the air in the middle ear cavity becomes isolated. The air…