The results of tympanometry can tell doctors whether there is fluid behind the eardrum or whether an ear tube is blocked. The test can also discover whether there is a hole in the eardrum. This information helps doctors decide what kind of treatment your child may need.
Normally the eardrum moves easily when pressure in the ear canal is changed. Most of the time, if the test is normal, there is no fluid behind the eardrum.
An abnormal test result may mean that there is fluid behind the eardrum. It can also mean that the eustachian tube, which connects the back of the nose and throat with the middle ear, is not working well.
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