Tympanometry is a test to evaluate the functioning of the middle ear and tympanic membrane. The test involves inserting a device into the outer ear to achieve a tight seal. Then the specialist causes a change in air pressure inside the atrial cavity to check the mobility of the eardrum and to see how the ear reacts to sound and pressure changes. During the test, the patient can hear very loud sound and may notice discomfort because of the probe. The results are plotted on a graph called tympanogram. This technique is used to detect alterations in the middle ear, the tympanic perforation, infectious otitis, tumors, bone diseases Driving middle ear or birth defects, among others.

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