The healthcare provider can try to help the person figure out the cause of the ringing. Diagnosis starts with a medical history and physical exam. This may be all that's needed to make the diagnosis. In other cases, further testing is needed.
Various tests are ordered, depending on the suspected cause. For example, a cranial CT scan may be done if a stroke or brain tumor is suspected. Hearing tests, such as an audiogram, may be done if age-related hearing loss or noise damage are suspected.