What Causes Ear Congestion?
The human ear consists of the external, middle and inner ear. The middle ear is an air-filled space with three tiny bones that transmit sound vibrations to the inner ear, the site of the hearing nerves. The middle ear connects to the nasal cavity through the eustachian tube, which helps equalize the pressure between the middle ear and the external environment. Conditions that affect the middle ear and eustachian tube may cause an accumulation of fluid in the middle ear, resulting in congestion.
