What Is a Middle Ear Infection?
2. Causes
As mentioned, inner infections are often caused after the eustachian tubes become blocked. This can cause fluids to begin to accumulate in the tubes and this might enable pathogens to proliferate. Such infections can be caused by viruses or bacteria, and the pathogens involved are often those that cause other diseases.
The swelling of the adenoids often responsible for blocked eustachian tubes is sometimes caused by allergies. It can also be caused by other diseases like the flu or the common cold. Indeed, many cases of an inner ear infection will occur when the patient has a respiratory disease of sorts.
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