Tympanometry measures the condition of the middle ear, including the pressure, the mobility of eardrum and the conduction of sound through the bony structure. It creates pressure in the ear canal and is non-invasive. It is an objective test of middle ear function. During this test a small probe is inserted in the ear canal that builds up pressure in the ear canal. The patient should be quiet during the test and it take a few seconds. It is non-invasive and can be done on babies and children. Should abnormal middle ear measures be detected, further testing or referral is needed to determine intervention.