What are the causes of ear ringing?

Local nerve damage. Tinnitus is ringing in the ears caused by damage to the hearing nerve. It can come from a one-time event (rock concert) or multiple events over time. It is typically heard at the frequency of the damage. It is essentially the brain thinking it heard a sound at that frequency when there is no sound. The brain hears it because of the damage and does not always resolve completely.
Many causes. Maintaining tinnitus is often the best that some treatments provide. Determining the cause of tinnitus is difficult. Start with a very thorough history and exam with your doctor. Keeping a home diary of the ringing events, or what may increase it or decrease would be valuable- write down your what you are eating, pain if any, what ear/ears, lying down or upright. The supplement ginkgo may help.

Related Questions

What could cause sudden ear ringing?

Telephone? (sorry, kidding). Inner ear pressure change; medications; some infections; no reason (= idiopathic tinnitus); trauma...Lots of potential reasons. Majority are relatively short-lived. If persists or is very annoying, see ENT dr or neurologist. Read more...

What can cause ear ringing every now and again?

TINNITUS(RINGING EAR. It can be caused by several medical conditions and you need to check with your doctor , following common conditions allergies, ear infections, hearing loss, wxcessive wax, brain or head injury, stress, hypothyroidism, lyme disease, TMJ disfunction, high blood pressure, meniers disease, otosclerosis, and poor circulation. Read more...

What could cause my ear to be ringing for 4 days straight now?

See below. Tinnitis (ringing ears) can be caused by many things. The list is incredibly large and thus, i suggest you see you physician for an evaluation. Read more...

What could be causing my ears to be ringing at night?

Tinnitus. Some people have ringing in the ears (tinnitus) which is not very loud. So they may not notice it amid the noise and distractions of the day - where as when it is quiet at night - they are more apt to focus on it. Get it checked by you ENT doctor. Read more...