Definition:
Tinnitus is a sensation of sound (which is not actually present in the external environment) in one or both ears. It can be heard as ringing, buzzing, roaring, hissing, whistling, throbbing or booming. It can manifest as a single sound or a number of different sounds and can develop either gradually or suddenly. The principal underlying cause of Tinnitus is irritated nerve
endings in the inner ear. Tinnitus is not itself a disease, but an unwelcome symptom resulting from a range of underlying causes. Cohort studies have demonstrated that damage to hearing from unnatural levels of noise exposure is very widespread in industrialised countries.

Aetiology / Risk factors that can contribute to the incidence of tinnitus include:
* Nutritional deficiencies–especially B12, zinc and/or manganese
* Metal toxicity
* Medications (e.g., isotretinoin, aspirin, NSAIDS, quinine, methotrexate, some antibiotics, etc)
* Excessive consumption of alcohol
* Ear infections
* Allergies
* Menière’s Disease
*Noise induced hearing loss, resulting from exposure to excessive or loud noises.
 *Cerumen (earwax) impaction
* Middle ear effusion
* Ageing
* Injury
* Otosclerosis
* Mucous forming foods
* Adrenal fatigue
* Multiple sclerosis
* Fibromylagia
* Dyslipidaemia

Common signs and symptoms of tinnitus include:
* Sensation of sound (which is not actually present in the external environment) in one or both ears. It can be heard as ringing, buzzing, roaring, hissing, whistling, throbbing or booming.
* Poor sleep due to sound.
* Poor hearing, particularly at low frequencies.
* Reduced social inter action due to difficulties hearing conversation, etc.