You may feel certain that you have only lost hearing in one ear, while the other one is fine. Though the notion of having a good ear and a bad ear is often correct in a relative sense, there can be hearing loss present in the ‘good’ ear too, just not as pronounced as in the other one. Your audiologist can perform tests to determine the extent of hearing loss in both your ‘bad’ ear and your ‘good’ ear. Be sure to ask whether they recommend getting hearing aids for both ears, and for ways to tell if they are working properly.